Multifunctional automatic gangway ladder mechanism

Abstract

The invention discloses a multifunctional automatic gangway ladder mechanism, and belongs to the technical field of aircraft gangway ladder mechanisms, the multifunctional automatic gangway ladder mechanism comprises a main frame, track frames are symmetrically and slidably connected to the outer wall of the main frame, the track frames are detachably connected with an aircraft main body, and a transmission assembly is mounted in the main frame; a power motor for driving the transmission assembly to work is further installed in the main frame. When the automatic gangway ladder mechanism is used, the power motor is started to drive the transmission assembly to work, the upper ladder, the lower ladder and the protective handrail assembly are unfolded, then the supporting plate is connected with a movable rail formed by the main guide rail and the auxiliary guide rail, and then the traction rope is connected with the supporting plate; according to the automatic gangway ladder mechanism, after the traction rope is connected with the supporting plate, the wheelchair is fixed to the supporting plate, then the release motor is controlled to slowly release the traction rope, then a passenger sitting on the wheelchair slowly gets off the machine, in this way, the passenger having difficulty in moving can stably and safely get off the machine, and therefore the practicability of the automatic gangway ladder mechanism is improved.

Description

A multifunctional automatic gangway mechanism Technical Field

[0001] This invention relates to the field of aircraft boarding ladder mechanism technology, specifically a multifunctional automatic boarding ladder mechanism. Background Technology

[0002] Aircraft boarding stairs are mobile staircases used by passengers and crew to enter and exit the aircraft. Currently, most boarding equipment in Chinese airports consists of boarding bridges and airspace boarding stairs. Boarding stairs for Chinese civil aircraft are all fixed door-and-ladder integrated designs. While simple in structure, fixed door-and-ladder integrated designs are limited by height and unsuitable for medium and large aircraft. Furthermore, they lack complex unfolding / retraction and folding mechanisms and electrical control systems. Boarding bridges also lack integrated accessibility solutions for wheelchair passengers, requiring manual assistance or additional ramps, which is cumbersome and poses safety hazards. Some attempts to integrate electric lifting devices have resulted in redundant structures, high maintenance costs, and potential jamming due to asynchronous multi-stage movements, making them unsuitable for high-frequency, high-intensity air transport scenarios. Therefore, this application proposes a multi-functional automatic boarding staircase mechanism. Thus, this invention provides a multi-functional automatic boarding staircase mechanism to solve the aforementioned problems. Summary of the Invention

[0003] The purpose of this invention is to provide a multifunctional automatic gangway mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional automatic gangway mechanism, comprising a main frame, a track frame symmetrically and slidably connected to the outer wall of the main frame, the track frame being detachably connected to the aircraft body, a transmission assembly installed inside the main frame, a power motor for driving the transmission assembly also installed inside the main frame, an upper ladder movably connected inside the main frame, a lower ladder rotatably connected to the lower end of the upper ladder, and protective handrail assemblies installed at the upper ends of the upper and lower ladders; a fall protection assembly rotatably connected to the end of the protective handrail assembly near the main frame. The upper and lower ladders are internally fixedly connected with several ladder surfaces. Each ladder surface is symmetrically fixedly connected to a guide rail at its upper end. A transport component for transporting the wheelchair is detachably connected between two guide rails on the ladder surface closest to the main frame of the upper ladder. A shield is fixedly connected to the end of the lower ladder away from the upper ladder. A release motor is symmetrically fixedly connected to the lower end of the shield. A winding wheel is fixedly connected to the output shaft of the release motor. A traction rope for controlling the movement of the transport component is wound on the winding wheel. The traction rope is detachably connected to the transport component after passing around the lower part of several ladder surfaces.

[0005] As a further embodiment of the present invention, a positioning main wheel and a positioning secondary wheel are rotatably connected to the front and rear outer walls of the main frame. An upper positioning groove and a lower positioning groove are opened at the end of each of the two track frames near the main frame. The positioning main wheel and the positioning secondary wheel are respectively located in the lower positioning groove and the upper positioning groove. A rack is also fixedly connected to the lower end of the track frame.

[0006] As a further embodiment of the present invention, the transmission assembly includes two threaded screws, which are rotatably connected to the inner wall of the main frame. A dual-shaft gearbox is connected to the output shaft of the power motor. An upper transmission shaft and a lower transmission shaft are fixedly connected to the two output shafts of the dual-shaft gearbox, respectively. The end of the upper transmission shaft away from the dual-shaft gearbox passes through the main frame. The upper transmission shaft is rotatably connected to the main frame through bearings, and a transmission gear is fixedly connected to the end of the upper transmission shaft that passes through the main frame. The transmission gear meshes with a rack.

[0007] As a further embodiment of the present invention, a bevel gear is fixedly connected to the end of the lower transmission shaft away from the dual-shaft gearbox, and a bevel gear is also fixedly connected to the end of the threaded screw near the lower transmission shaft, with the bevel gear on the lower transmission shaft meshing with the bevel gear on the threaded screw.

[0008] The threaded screw is threadedly connected to a slide, and the slide is movably connected to a cam, which is rotatably connected to the protective handrail assembly.

[0009] As a further embodiment of the present invention, the carriage includes a frame, and sliding wheels are rotatably connected to the outer wall of the frame. The sliding wheels are slidably connected to the inner wall of the main frame. Restriction grooves are symmetrically opened on the inner wall of the main frame. The sliding wheels are slidably connected in the restriction grooves. A reversing groove is also provided at the end of the restriction groove away from the power motor. The reversing groove communicates with the restriction groove and is inclinedly arranged on the inner wall of the main frame.

[0010] As a further embodiment of the present invention, a sliding sleeve is rotatably connected to the lower end of the frame, the sliding sleeve being threaded onto the outside of a threaded screw. A connector is fixedly connected to one end of the frame near the protective handrail assembly. The connector is U-shaped, and a limiting rod is fixedly connected inside the connector. A cam is fitted onto the outside of the limiting rod. The protective handrail assembly includes two power rods, which are rotatably connected to the outer wall of the upper ladder. An upper handrail and an inner handrail are respectively hinged to the upper end and middle part of each power rod. An inner pull rod is installed on the side of the inner handrail away from the upper handrail, and the inner pull rod is hinged to the cam; a supporting vertical rod is hinged to the end of the upper handrail away from the power rod, and the inner handrail is also hinged to the supporting vertical rod, and a swinging member is hinged to the lower end of the supporting vertical rod; the end of the inner pull rod away from the cam is hinged to the swinging member, and a pull rod is also hinged to the outside of the swinging member; a power half gear is hinged to the end of the pull rod away from the swinging member, and a driven gear meshes with the outside of the power half gear; the driven gear is fixedly connected to the lower ladder.

[0011] As a further embodiment of the present invention, the upper end of the supporting vertical rod is also hinged to a connecting handrail, the end of the connecting handrail away from the supporting vertical rod is hinged to a driven rod, the end of the driven rod away from the connecting handrail is hinged to the lower ladder, and a connecting short rod is also hinged between the driven rod and the inner handrail.

[0012] The fall protection assembly includes two fall protection handrails, which are respectively hinged to the upper end of the upper handrail. A power telescopic rod is hinged between the fall protection handrails and the power rod, and the power telescopic rod is an electric actuator.

[0013] As a further embodiment of the present invention, the guide rail component includes a main guide rail and a secondary guide rail, which are rotatably connected. A positioning plate is installed at the lower end of the main guide rail, which is fixedly connected to the trapezoidal surface. A fixed shaft is fixedly connected to the upper end of the positioning plate, and the main guide rail and the secondary guide rail are rotatably connected to the fixed shaft respectively.

[0014] As a further embodiment of the present invention, the transport component includes a support plate, with brake blocks symmetrically fixedly connected to the lower end of the support plate. The brake blocks are slidably connected to the main guide rail and the secondary guide rail. Sliding strips are symmetrically fixedly connected to the outer wall of the brake blocks. Sliding channels are symmetrically opened at the upper ends of the main guide rail and the secondary guide rail. The sliding strips are slidably connected within the sliding channels. A limiting bolt is threadedly connected to the outer wall of the support frame on the uppermost ladder surface inside the upper ladder, and the limiting bolt passes through the sliding channel. A support frame is symmetrically slidably connected to the upper end of the support plate. A hub placement groove is opened inside the support frame. A steel belt is symmetrically fixedly connected to the upper end of the support frame. Several locking rods are fixedly connected to the outer wall of the steel belt. A locking slot is also opened on the outer wall of the steel belt. A restraining channel is symmetrically opened on the outer wall of the support frame. Locking screws are symmetrically threadedly connected to the outer wall of the support frame, and the locking screws correspond to the restraining channels.

[0015] As a further embodiment of the present invention, a brake groove is provided at the lower end of the brake block, and a brake plate is rotatably connected inside the brake groove. Several brake protrusions are fixedly connected to the bottom of the main guide rail and the auxiliary guide rail. A pull rod is also slidably connected to the outer wall of the brake block. One end of the pull rod is located inside the brake groove, and the other end is located outside the brake groove. A support spring is sleeved on the end of the pull rod located inside the brake groove, and a limiting ring is fixedly connected to the outer wall of the pull rod. The pull rod and the brake plate are fixedly connected by a pull rope.

[0016] An adjustment assembly is provided between the main guide rail and the secondary guide rail. The adjustment assembly includes a fixing block, which is fixedly connected to the ladder surface and is inclined between the main guide rail and the secondary guide rail. A limiting frame is fixedly connected to the end of the fixing block near the main guide rail. A pushing block is slidably connected inside the limiting frame. The outer wall of the pushing block is provided with an inclined surface. A first abutting block and a second abutting block are fixedly connected to the ends of the main guide rail and the secondary guide rail that are close to each other, respectively. A through window is also provided on the surface of the ladder surface to prevent the ladder surface from blocking the sliding of the pushing block. The limiting frame is fixedly connected to the fixed shaft through the through window.

[0017] A pressure rod is slidably connected inside the fixed block. A pressure wheel is rotatably connected to the end of the pressure rod away from the fixed block. A connecting rod is fixedly connected to the end of the pressure rod inside the fixed block. The connecting rod is fixedly connected to the pushing block through a connecting plate. A second return spring is sleeved on the outside of the pressure rod. A limiting block is fixedly connected to the outer wall of the connecting rod. The limiting block is shaped like a frustum. Limiting pins are symmetrically fixedly connected to the inner wall of the fixed block. A return block is also slidably connected to the outer wall of the connecting rod. The upper and lower end faces of the return block are provided with inclined surfaces. A support ring is fixedly connected to the outer wall of the connecting rod below the return block.

[0018] Guide wheels are fixedly connected to the back of both the upper and lower ladders, and the traction rope is attached to the outside of the guide wheels and the pressure wheel.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the automatic gangway mechanism of the present invention is used, the power motor is turned on to drive the transmission component to work, so that the upper and lower ladders and the protective handrail components are unfolded. Then, the support plate is connected to the moving track formed by the main guide rail and the secondary guide rail. Then, the traction rope is connected to the support plate. After the traction rope is connected to the support plate, the wheelchair is fixed on the support plate. Then, the release motor is controlled to slowly release the traction rope, so that the passenger sitting in the wheelchair can slowly get off the plane. In this way, passengers with mobility impairments can get off the plane safely and smoothly, thereby increasing the practicality of the automatic gangway mechanism of the present invention.

[0020] 2. When the automatic gangway mechanism of the present invention is in use, if the traction rope breaks during the downward movement of the support plate, the pulling rod will lose its tension. Then, under the action of the support spring, the pulling rod will move into the brake groove, thereby releasing the pull rope. After the pull rope is released, the brake plate will rotate downward under the action of gravity, thereby locking between several brake protrusions, thus completing the braking and preventing the support plate from losing speed and moving downward rapidly, which could cause injury to passengers.

[0021] 3. The automatic gangway mechanism of the present invention only requires turning on the power motor to drive the transmission components to work, so that the upper and lower ladders and the protective handrail components can be unfolded. It can be seen that the present invention has the characteristics of simple operation and compact structure. Attached Figure Description

[0022] Figure 1 is a schematic diagram of a multifunctional automatic gangway mechanism.

[0023] Figure 2 is a side view of a multifunctional automatic gangway mechanism.

[0024] Figure 3 is a breakdown diagram of a multifunctional automatic gangway mechanism.

[0025] Figure 4 is a structural diagram of the carriage in a multifunctional automatic gangway mechanism.

[0026] Figure 5 is a structural diagram of the protective handrail assembly in a multifunctional automatic gangway mechanism.

[0027] Figure 6 is a structural diagram of the transport component in a multifunctional automatic gangway mechanism.

[0028] Figure 7 is a split view of the transport components in a multifunctional automatic gangway mechanism.

[0029] Figure 8 is a schematic diagram of the connection of the traction rope in a multifunctional automatic gangway mechanism.

[0030] Figure 9 is a cross-sectional view of the brake block in a multifunctional automatic gangway mechanism.

[0031] Figure 10 is a connection diagram of the guide rail and adjustment components in a multifunctional automatic gangway mechanism.

[0032] Figure 11 is a structural diagram of the adjustment component in a multifunctional automatic gangway mechanism.

[0033] Figure 12 is a cross-sectional view of the adjustment component in a multifunctional automatic gangway mechanism.

[0034] Figure 13 is a connection diagram of the limiting block and the reset block in a multifunctional automatic gangway mechanism.

[0035] Figure 14 shows the positional relationship between the upper and lower ladders and the main body of the aircraft in a multifunctional automatic gangway mechanism.

[0036] Figure 15 shows the unfolding process of a multifunctional automatic gangway mechanism.

[0037] Figure 16 shows the unfolding process of a multifunctional automatic gangway mechanism.

[0038] In the diagram: 1. Main frame; 2. Track frame; 3. Transmission assembly; 4. Upper ladder; 5. Lower ladder; 6. Guardrail assembly; 7. Fall protection assembly; 8. Carriage; 9. Power motor; 10. Transport assembly; 11. Guide rail; 12. Baffle plate; 13. Release motor; 14. Adjustment assembly; 15. Guide wheel; 16. Traction rope; 100. Positioning main wheel; 101. Positioning secondary wheel; 102. Limiting slide groove; 103. Directional slide groove; 200. Rack; 201. Upper positioning groove; 202. 110. Lower positioning groove; 111. Main guide rail; 112. Sliding channel; 113. Support plate; 114. Adjusting slide groove; 115. Support frame; 116. Optical axis; 117. Steel belt; 118. Binding channel; 119. Sliding bar; 120. Brake block; 121. Brake protrusion; 122. Fixed shaft; 123. First return spring; 124. Return slider; 125. Limiting bolt; 126. Locking rod; 127. Locking groove; 128. Brake plate; 129. Pull 130. Pull rod; 131. Support spring; 132. Pull rope; 133. Restriction ring; 134. Secondary guide rail; 135. First abutment block; 146. Second abutment block; 147. Fixing block; 148. Pushing block; 149. Restriction frame; 140. Connecting plate; 141. Pressure rod; 142. Pressure wheel; 143. Second return spring; 144. Restriction pin; 145. Restriction block; 146. Return block; 150. Support ring; 151. Connecting rod; 600. Power rod; 601. Upper support rod; 602. Inner handrail; 603. Supporting vertical rod; 604. Swinging component; 605. Pull-down rod; 606. Power half gear; 607. Driven gear; 608. Driven rod; 609. Connecting handrail; 700. Fall-prevention handrail; 701. Power telescopic rod; 800. Frame; 801. Sliding sleeve; 802. Sliding wheel; 803. Connecting component; 804. Limiting rod; 805. Cam; 806. Inner pull rod; 901. Upper transmission shaft; 902. Lower transmission shaft; 903. Threaded screw. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figures 1-3. In this embodiment of the invention, a multifunctional automatic gangway mechanism includes a main frame 1. A track frame 2 is symmetrically and slidably connected to the outer wall of the main frame 1. The track frame 2 is detachably connected to the aircraft body, and the positional relationship between the track frame 2 and the aircraft body is shown in Figure 14. A transmission assembly 3 is installed inside the main frame 1. A power motor 9 that drives the transmission assembly 3 is also installed inside the main frame 1. An upper ladder 4 is movably connected inside the main frame 1. A lower ladder 5 is rotatably connected to the lower end of the upper ladder 4. A protective handrail assembly 6 is installed at the upper end of the upper ladder 4 and the lower ladder 5. A protective handrail assembly 6 is rotatably connected to the end of the protective handrail assembly 6 closest to the main frame 1. The fall assembly 7, the upper ladder 4 and the lower ladder 5 are internally fixedly connected with several ladder surfaces. Each ladder surface is symmetrically fixedly connected with a guide rail 11 at its upper end. The two guide rails 11 on the ladder surface of the upper ladder 4 closest to the main frame 1 are detachably connected to a transport assembly 10 for transporting the wheelchair. The lower ladder 5 is fixedly connected with a shield 12 at the end away from the upper ladder 4. The lower end of the shield 12 is symmetrically fixedly connected with a release motor 13. A winding wheel is fixedly connected to the output shaft of the release motor 13. A traction rope 16 for controlling the movement of the transport assembly 10 is wound on the winding wheel. The traction rope 16 passes around the lower part of several ladder surfaces and is detachably connected to the transport assembly 10.

[0041] Please refer to Figures 1-5. Positioning main wheels 100 and positioning secondary wheels 101 are rotatably connected to the front and rear outer walls of the main frame 1. The height of the positioning secondary wheels 101 is higher than that of the positioning main wheels 100. The two track frames 2 are provided with upper positioning grooves 201 and lower positioning grooves 202 at the ends near the main frame 1. The positioning main wheels 100 and positioning secondary wheels 101 are located in the lower positioning grooves 202 and upper positioning grooves 201, respectively. The lower end of the track frame 2 is also fixedly connected to a rack 200. Specifically, when the track frame 2 slides outside the main frame 1, the positioning main wheels 100 and positioning secondary wheels 101 can support the main frame 1 so that it slides stably between the two track frames 2.

[0042] The transmission assembly 3 includes two threaded screws 903, which are rotatably connected to the inner wall of the main frame 1. A dual-shaft gearbox is connected to the output shaft of the power motor 9. An upper transmission shaft 901 and a lower transmission shaft 902 are fixedly connected to the two output shafts of the dual-shaft gearbox, respectively. The end of the upper transmission shaft 901 away from the dual-shaft gearbox passes through the main frame 1. The upper transmission shaft 901 is rotatably connected to the main frame 1 through bearings, and a transmission gear is fixedly connected to the end of the upper transmission shaft 901 that passes through the main frame 1. The transmission gear meshes with the rack 200. A bevel gear is fixedly connected to the end of the lower transmission shaft 902 away from the dual-shaft gearbox. A bevel gear is also fixedly connected to the end of the threaded screw 903 near the lower transmission shaft 902. The bevel gear on the lower transmission shaft 902 meshes with the bevel gear on the threaded screw 903.

[0043] The threaded screw 903 is externally threaded with a slide 8, and the slide 8 is internally movably connected with a cam 805. The cam 805 is rotatably connected to the guardrail assembly 6. Specifically, the slide 8 includes a frame 800, and sliding wheels 802 are rotatably connected to the outer wall of the frame 800. The sliding wheels 802 are slidably connected to the inner wall of the main frame 1. The inner wall of the main frame 1 is symmetrically provided with limiting grooves 102, and the sliding wheels 802 are slidably connected in the limiting grooves 102. Furthermore, a reversing groove 103 is provided at the end of the limiting groove 102 away from the power motor 9. The deflection groove 103 is connected to the limiting groove 102, and the deflection groove 103 is inclinedly set on the inner wall of the main frame 1; the lower end of the frame 800 is rotatably connected to the sliding sleeve 801, which is threaded onto the outside of the threaded rod 903; the end of the frame 800 near the protective handrail assembly 6 is fixedly connected to the connector 803, which is U-shaped, and the inside of the connector 803 is fixedly connected to the limiting rod 804, and the cam 805 is sleeved on the outside of the limiting rod 804; the protective handrail assembly 6 includes two power rods 600, the power rod 600... 00 is rotatably connected to the outer wall of the upper ladder 4, and the upper end and middle part of the power rod 600 are respectively hinged to the upper handrail 601 and the inner handrail 602. An inner pull rod 806 is installed on the side of the inner handrail 602 away from the upper handrail 601, and the inner pull rod 806 is hinged to the cam 805; the end of the upper handrail 601 away from the power rod 600 is hinged to the supporting vertical rod 603, and the inner handrail 602 is also hinged to the supporting vertical rod 603, and the lower end of the supporting vertical rod 603 is hinged to the swing member 604. The end of the inner pull rod 806 away from the cam 805 is hinged to the swing member 604. A pull rod 605 is hinged to the outside of 604. A drive half gear 606 is hinged to the end of the pull rod 605 away from the swing member 604. A driven gear 607 is meshed with the outside of the drive half gear 606. The driven gear 607 is fixedly connected to the lower ladder 5. A connecting handrail 609 is hinged to the upper end of the supporting vertical rod 603. A driven rod 608 is hinged to the end of the connecting handrail 609 away from the supporting vertical rod 603. The end of the driven rod 608 away from the connecting handrail 609 is hinged to the lower ladder 5. A connecting short rod is also hinged between the driven rod 608 and the inner handrail 602.

[0044] The fall arrest component 7 includes two fall arrest handrails 700. The two fall arrest handrails 700 are respectively hinged to the upper end of the upper handrail 601. A power telescopic rod 701 is hinged between the fall arrest handrails 700 and the power rod 600. The power telescopic rod 701 is an electric actuator.

[0045] In operation, the power motor 9 is activated to rotate the upper transmission shaft 901 and the lower transmission shaft 902. The rotation of the upper transmission shaft 901 drives the transmission gear, which, under the action of the rack 200 at the lower end of the track frame 2, drives the main frame 1 to move outwards from the aircraft body. Simultaneously, the lower transmission shaft 902 drives the threaded screw 903 to rotate, causing the frame 800 to move inside the main frame 1. The frame 800 moves along the limiting slide 102 towards the reversing slide 103. As the frame 800 moves within the limiting slide 102, it pushes the upper ladder 4 and the lower ladder 5 outwards from the aircraft body. Once the frame 800 has moved from the limiting slide 102 into the reversing slide 103, the upper ladder... 4 will rotate, and during this process, cam 805 will also rotate. As cam 805 rotates, it will push the inner pull rod 806. When the inner pull rod 806 is pushed, it will drive the driven gear 607 to rotate through the power half gear 606. As the driven gear 607 rotates, it will drive the lower ladder 5 to rotate, thereby causing the lower ladder 5 to unfold from the folded state and then contact the ground (the unfolding process is shown in Figures 15 and 16). During this process, the inner pull rod 806 will also drive the swing member 604 to rotate. As the swing member 604 rotates and is fixed, it will drive the support vertical rod 603 to rotate. As the support vertical rod 603 rotates, the entire protective handrail assembly 6 will unfold. After the protective handrail assembly 6 is unfolded, the fall prevention handrail 700 can be unfolded through the power telescopic rod 701.

[0046] Example 2: Referring to Figures 6-10, based on Example 1, the guide rail component 11 includes a main guide rail 110 and a secondary guide rail 133, which are rotatably connected. A positioning plate is installed at the lower end of the main guide rail 110, and the positioning plate is fixedly connected to the trapezoidal surface. A fixing shaft 121 is fixedly connected to the upper end of the positioning plate. The main guide rail 110 and the secondary guide rail 133 are rotatably connected to the fixing shaft 121, respectively. Specifically, sliding windows are symmetrically opened on the outer wall of the main guide rail 110, and a reset slider 123 is slidably connected inside the sliding window. The reset slider 123 is connected to the positioning plate through a first reset spring 122. Transport component 1 The ladder 4 includes a support plate 112, with brake blocks 119 symmetrically fixedly connected to the lower end of the support plate 112. The brake blocks 119 are slidably connected to the main guide rail 110 and the secondary guide rail 133. Sliding strips 118 are symmetrically fixedly connected to the outer wall of the brake blocks 119. Sliding channels 111 are symmetrically opened at the upper ends of both the main guide rail 110 and the secondary guide rail 133. The sliding strips 118 are slidably connected within the sliding channels 111. A limiting bolt 124 is threaded onto the outer wall of the support frame 114 on the uppermost ladder surface of the ladder 4, and the limiting bolt 124 passes through the sliding channel 111 (see Figure 7 for details). The upper end of the support plate 112 is symmetrically slidably connected to… The system includes a support frame 114 with a hub placement groove inside. A steel belt 116 is symmetrically fixedly connected to the upper end of the support frame 114. Several locking rods 125, shaped like a "T," are fixedly connected to the outer wall of the steel belt 116. A locking slot 126 is also provided on the outer wall of the steel belt 116. A restraint channel 117 is symmetrically provided on the outer wall of the support frame 114, and locking screws are symmetrically threaded onto the outer wall of the support frame 114, corresponding to the restraint channels 117. Specifically, an adjusting groove 113 is provided at the upper end of the support plate 112, and an optical shaft 115 is fixedly connected inside the adjusting groove 113. The support frame 114 is slidably connected to the outside of the optical axis 115. In use, the wheelchair hub is placed in the hub placement slot and the steel belt 116 is adjusted so that the steel belt 116 passes between adjacent spokes inside the hub. Then the steel belt 116 is passed through the restraint channel 117. After the steel belt 116 passes through the restraint channel 117, the locking hook 126 is fastened to the outside of the locking rod 125 to complete the fixation of the wheelchair hub. At the same time, the locking screw can be rotated to move it into the support frame 114, thereby further restricting the steel belt 116. By adjusting the distance between the two support frames 114, the transport component 10 can be adapted to wheelchairs of different sizes.

[0047] Please refer to Figures 7 and 9. A brake groove 127 is formed at the lower end of the brake block 119. A brake plate 128 is rotatably connected inside the brake groove 127. Several brake protrusions 120 are fixedly connected to the bottom ends of both the main guide rail 110 and the secondary guide rail 133. A pull rod 129 is slidably connected to the outer wall of the brake block 119. One end of the pull rod 129 is located inside the brake groove 127, and the other end is located outside the brake groove 127. The end of the pull rod 129 inside the brake groove 127 is fitted with a... A supporting spring 130 is provided, and a limiting ring 132 is fixedly connected to the outer wall of the pulling rod 129. The sliding stroke of the pulling rod 129 can be limited by the limiting ring 132, and the supporting spring 130 can be prevented from being excessively compressed by the limiting ring 132. The pulling rod 129 is fixedly connected to the brake plate 128 by a pull rope 131, and a connecting ring is fixedly connected to the side of the pulling rod 129 located outside the brake block 119. A hook is fixedly connected to the free end of the traction rope 16, and the hook is hung inside the connecting ring.

[0048] Please refer to Figures 10-13. An adjustment component 14 is provided between the main guide rail 110 and the secondary guide rail 133. The adjustment component 14 includes a fixing block 140, which is fixedly connected to the ladder surface and is inclined between the main guide rail 110 and the secondary guide rail 133. A limiting frame 142 is fixedly connected to one end of the fixing block 140 near the main guide rail 110. A pushing block 141 is slidably connected inside the limiting frame 142. The outer wall of the pushing block 141 is provided with an inclined surface. A first abutting block 134 and a second abutting block 135 are fixedly connected to the ends of the main guide rail 110 and the secondary guide rail 133 that are close to each other, respectively. The surface of the surface is also provided with a through window, which can prevent the step surface from blocking the sliding of the push block 141. The limiting frame 142 is fixedly connected to the fixed shaft 121 through the through window. As the push block 141 moves toward the first abutting block 134 and the second abutting block 135, the push block 141 will push open the first abutting block 134 and the second abutting block 135, thereby causing the main guide rail 110 and the secondary guide rail 133 to rotate, thereby adjusting the main guide rail 110 and the secondary guide rail 133, which are in a vertical state, to a state of end-to-end connection, so that several main guide rails 110 and secondary guide rails 133 form a straight moving track.

[0049] A pressure rod 144 is slidably connected inside the fixed block 140. A pressure wheel 145 is rotatably connected to the end of the pressure rod 144 away from the fixed block 140. A connecting rod 151 is fixedly connected to the end of the pressure rod 144 inside the fixed block 140. The connecting rod 151 is fixedly connected to the pushing block 141 via a connecting plate 143. A second return spring 146 is sleeved on the outside of the pressure rod 144. A limiting block 148 is fixedly connected to the outer wall of the connecting rod 151. The limiting block 148 is frustoconical in shape, and the fixed block 140... A limiting pin 147 is symmetrically fixedly connected to the inner wall of the 40. Specifically, two slots are symmetrically opened on the inner wall of the fixing block 140. The limiting pin 147 is slidably connected in the slot, and a third return spring is also fixedly connected in the slot. An inclined surface is provided at the lower end of the limiting pin 147. A return block 149 is slidably connected to the outer wall of the connecting rod 151. Both the upper and lower end faces of the return block 149 are provided with inclined surfaces, and a support ring 150 is fixedly connected to the outer wall of the connecting rod 151 below the return block 149.

[0050] Please refer to Figure 8. Guide wheels 15 are fixedly connected to the back of both the upper ladder 4 and the lower ladder 5. The traction rope 16 is laid outside the guide wheels 15 and the pressure wheel 145.

[0051] The working principle of this invention is as follows: When in use, the power motor 9 is turned on to provide power to the protective handrail assembly 6, the upper ladder 4, and the lower ladder 5, causing the upper ladder 4, the lower ladder 5, and the protective handrail assembly 6 to unfold, thereby facilitating passengers to disembark; after the upper ladder 4 and the lower ladder 5 unfold, the support plate 112 is removed, allowing the sliding strip 118 to be inserted into the corresponding sliding channel 111, and then the limiting bolt 124 is rotated to seal the sliding channel 111. After the sliding channel 111 is sealed, the traction rope 16 is connected to the pull rod 129. After the traction rope 16 is connected to the pull rod 129, the release motor 13 is turned on, and the release motor 13 will wind up the traction rope 16. During the winding process, the traction rope 16 is pulled taut. At this time, the traction rope 16 applies pressure to the pressure roller 145, causing it to move inwards towards the fixed block 140. When the pressure roller 145 is compressed, the pressure rod 144 moves inwards towards the fixed block 140. During the movement of the pressure rod 144, the limiting block 148 compresses the limiting pin 147. When the limiting block 148 passes the limiting pin 147, it is blocked by the limiting pin 147. Thus, the cooperation of the limiting block 148 and the limiting pin 147 restricts the pressure rod 144. As the traction rope 16 is tightened, the pulling rod 129 is pulled. At this time, the pulling rod 129 drives the brake plate 128 to rotate via the pull rope 131, causing... It is stored in the brake groove 127; during the movement of the pressure rod 144, it pushes the first abutment block 134 and the second abutment block 135 through the push block 141, so that the main guide rail 110 and the secondary guide rail 133 change from a vertical state to a head-to-tail connected state, and then a complete moving track is spliced ​​by several main guide rails 110 and secondary guide rails 133 (it is worth noting that when the main guide rail 110 and the secondary guide rail 133 are in the head-to-tail connected state, the limiting block 148 just passes the limiting pin 147, and the main guide rail 110 and the secondary guide rail 133 can be supported by the blocking of the limiting pin 147); when the main guide rail 110 and the secondary guide rail 133 form a complete moving track Afterwards, the wheelchair's hub is secured in the hub placement slot, and then the steel belt 116 is used to position the hub. When placing the wheelchair, the backrest should be facing downwards, so that the passenger sitting in the wheelchair is facing the main cabin door of the aircraft. Once the wheelchair is positioned, the release motor 13 is activated again to reverse it and release the traction rope 16. At this time, under the gravity of the wheelchair, the support plate 112 will move downwards. By controlling the release motor 13 to slowly release the traction rope 16, the passenger sitting in the wheelchair can slowly disembark. Once the support plate 112 moves to the end of the lower ladder 5, the wheelchair can be removed. This method allows passengers sitting in wheelchairs to disembark smoothly and safely.

[0052] When the traction rope 16 breaks during the downward movement of the support plate 112, the pull rod 129 loses its tension. Then, under the action of the support spring 130, the pull rod 129 moves into the brake groove 127, releasing the pull rope 131. After the pull rope 131 is released, the brake plate 128 rotates downward under gravity, thus locking itself between several brake protrusions 120, thereby completing the braking and preventing the support plate 112 from rapidly descending and causing injury to the passenger. After the passenger in the wheelchair disembarks, the release motor 13 is activated to pull the support plate 112 back to its original position. When the support plate 112 moves to the top of the ladder 4, it is restrained by the limiting bolt 124. At this time, the traction rope 16 will again apply pressure to the pressure wheel 145. The pressure causes the pressure rod 144 to move back into the fixed block 140. During this movement, the reset block 149 moves along with the support ring 150. After the reset block 149 passes the limiting pin 147, the release motor 13 releases the traction rope 16. At this point, the pressure rod 144 resets under the action of the second reset spring 146. During the reset process, the limiting block 148 moves along with the reset block 148, causing the limiting block 148 to pass over the limiting pin 147. This allows the push block 141 to reset with the first abutment block 134 and the second abutment block 135. At this point, the main guide rail 110 resets under the action of the first reset spring 122, while the secondary guide rail 133 resets under gravity. The gangway of this invention is an optimized modification based on the company's existing basic gangway structure, aiming to provide more convenient and safe boarding assistance for people with mobility impairments, while retaining the complete usability of the original structure in conventional boarding scenarios. It has good versatility and promotional value. It should be noted that the auxiliary boarding structure added in this invention can be disassembled according to actual usage needs. After disassembly, the number of overall structural components of the gangway can be effectively reduced, achieving lightweight design, reducing daily maintenance workload, and will not affect the normal use function of the gangway under normal circumstances.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multifunctional automatic gangway mechanism, comprising a main frame (1), characterized in that, The outer wall of the main frame (1) is symmetrically and slidably connected to a track frame (2). The track frame (2) is detachably connected to the main body of the aircraft. A transmission assembly (3) is installed inside the main frame (1). A power motor (9) that drives the transmission assembly (3) is also installed inside the main frame (1). An upper ladder (4) is movably connected inside the main frame (1). A lower ladder (5) is rotatably connected to the lower end of the upper ladder (4). A protective handrail assembly (6) is installed at the upper end of the upper ladder (4) and the lower ladder (5). A fall arrestor assembly (7) is rotatably connected to the end of the protective handrail assembly (6) near the main frame (1). Several internal components are fixedly connected to the upper ladder (4) and the lower ladder (5). Each of the ladder surfaces has a guide rail (11) symmetrically fixedly connected to its upper end. The two guide rails (11) on the ladder surface closest to the main frame (1) of the upper ladder (4) are detachably connected to a transport component (10) for transporting the wheelchair. The lower ladder (5) has a shield (12) fixedly connected to its end away from the upper ladder (4). The lower end of the shield (12) is symmetrically fixedly connected to a release motor (13). A winding wheel is fixedly connected to the output shaft of the release motor (13). A traction rope (16) for controlling the movement of the transport component (10) is wound on the winding wheel. The traction rope (16) passes around the lower part of several ladder surfaces and is detachably connected to the transport component (10).

2. The multifunctional automatic gangway mechanism according to claim 1, characterized in that, The main frame (1) is rotatably connected to the front and rear outer walls of the main frame (1). The two track frames (2) are provided with an upper positioning groove (201) and a lower positioning groove (202) at the end near the main frame (1). The positioning main wheel (100) and the positioning secondary wheel (101) are located in the lower positioning groove (202) and the upper positioning groove (201) respectively. The lower end of the track frame (2) is also fixedly connected with a rack (200).

3. The multifunctional automatic gangway mechanism according to claim 2, characterized in that, The transmission assembly (3) includes two threaded screws (903), which are rotatably connected to the inner wall of the main frame (1). A dual-shaft gearbox is connected to the output shaft of the power motor (9). An upper transmission shaft (901) and a lower transmission shaft (902) are fixedly connected to the two output shafts of the dual-shaft gearbox. The end of the upper transmission shaft (901) away from the dual-shaft gearbox passes through the main frame (1). The upper transmission shaft (901) is rotatably connected to the main frame (1) through a bearing, and a transmission gear is fixedly connected to the end of the upper transmission shaft (901) that passes through the main frame (1). The transmission gear meshes with a rack (200).

4. A multifunctional automatic gangway mechanism according to claim 3, characterized in that, The lower transmission shaft (902) is fixedly connected to a bevel gear at the end away from the dual-shaft gearbox, and the threaded screw (903) is also fixedly connected to a bevel gear at the end near the lower transmission shaft (902). The bevel gear on the lower transmission shaft (902) meshes with the bevel gear on the threaded screw (903). The threaded screw (903) is threadedly connected to a slide (8) on the outside, and a cam (805) is movably connected inside the slide (8). The cam (805) is rotatably connected to the protective handrail assembly (6).

5. A multifunctional automatic gangway mechanism according to claim 4, characterized in that, The carriage (8) includes a frame (800), and sliding wheels (802) are rotatably connected to the outer wall of the frame (800). The sliding wheels (802) are slidably connected to the inner wall of the main frame (1). The inner wall of the main frame (1) is symmetrically provided with limiting grooves (102). The sliding wheels (802) are slidably connected in the limiting grooves (102). The end of the limiting groove (102) away from the power motor (9) is also provided with a reversing groove (103). The reversing groove (103) is connected to the limiting groove (102), and the reversing groove (103) is inclinedly arranged on the inner wall of the main frame (1).

6. A multifunctional automatic gangway mechanism according to claim 5, characterized in that, The lower end of the frame (800) is rotatably connected to a sliding sleeve (801), which is threaded onto the outside of a threaded screw (903). A connector (803) is fixedly connected to one end of the frame (800) near the protective handrail assembly (6). The connector (803) is U-shaped, and a limiting rod (804) is fixedly connected inside the connector (803). A cam (805) is fitted onto the outside of the limiting rod (804). The protective handrail assembly (6) includes two power rods (600). The power rods (600) are rotatably connected to the outer wall of the upper ladder (4), and the upper end and middle part of the power rods (600) are respectively hinged to an upper handrail (601) and an inner handrail (602). The inner handrail (602) is located away from the upper handrail (601). An inner pull rod (806) is installed on the side, and the inner pull rod (806) is hinged to the cam (805); the upper support rod (601) is hinged to a support vertical rod (603) at the end away from the power rod (600), the inner support rod (602) is also hinged to the support vertical rod (603), and the lower end of the support vertical rod (603) is hinged to a swing member (604). The inner pull rod (806) is hinged to the swing member (604) at the end away from the cam (805), and the swing member (604) is also hinged to a lower pull rod (605). The lower pull rod (605) is hinged to a power half gear (606) at the end away from the swing member (604). The power half gear (606) is meshed with a driven gear (607) on the outside, and the driven gear (607) is fixedly connected to the lower ladder (5).

7. A multifunctional automatic gangway mechanism according to claim 6, characterized in that, The upper end of the supporting vertical rod (603) is also hinged to a connecting handrail (609). The end of the connecting handrail (609) away from the supporting vertical rod (603) is hinged to a driven rod (608). The end of the driven rod (608) away from the connecting handrail (609) is hinged to the lower ladder (5). A connecting short rod is also hinged between the driven rod (608) and the inner handrail (602). The fall protection assembly (7) includes two fall protection handrails (700). The two fall protection handrails (700) are respectively hinged to the upper end of the upper handrail (601). A power telescopic rod (701) is hinged between the fall protection handrail (700) and the power rod (600). The power telescopic rod (701) is an electric actuator.

8. A multifunctional automatic gangway mechanism according to claim 1, characterized in that, The guide rail component (11) includes a main guide rail (110) and a secondary guide rail (133). The main guide rail (110) and the secondary guide rail (133) are rotatably connected. A positioning plate is installed at the lower end of the main guide rail (110). The positioning plate is fixedly connected to the trapezoidal surface, and a fixed shaft (121) is fixedly connected to the upper end of the positioning plate. The main guide rail (110) and the secondary guide rail (133) are rotatably connected to the fixed shaft (121) respectively.

9. A multifunctional automatic gangway mechanism according to claim 8, characterized in that, The transport component (10) includes a support plate (112). A brake block (119) is symmetrically fixedly connected to the lower end of the support plate (112). The brake block (119) is slidably connected to the main guide rail (110) and the secondary guide rail (133). A sliding strip (118) is symmetrically fixedly connected to the outer wall of the brake block (119). A sliding channel (111) is symmetrically opened at the upper end of the main guide rail (110) and the secondary guide rail (133). The sliding strip (118) is slidably connected in the sliding channel (111). A limiting bolt (124) is threadedly connected to the outer wall of the support frame (114) on the uppermost ladder surface inside the upper ladder (4). The bolt (124) is inserted into the sliding channel (111); the upper end of the support plate (112) is symmetrically slidably connected to the support frame (114), the inside of the support frame (114) is provided with a hub placement groove, the upper end of the support frame (114) is also symmetrically fixedly connected to the steel belt (116), a number of locking rods (125) are fixedly connected to the outer wall of the steel belt (116), the outer wall of the steel belt (116) is also provided with a locking hole (126), the outer wall of the support frame (114) is also symmetrically provided with a binding channel (117), the outer wall of the support frame (114) is symmetrically threaded with a locking screw, and the locking screw corresponds to the binding channel (117).

10. A multifunctional automatic gangway mechanism according to claim 9, characterized in that, The lower end of the brake block (119) is provided with a brake groove (127). A brake plate (128) is rotatably connected inside the brake groove (127). Several brake protrusions (120) are fixedly connected to the bottom of the main guide rail (110) and the secondary guide rail (133). A pull rod (129) is also slidably connected to the outer wall of the brake block (119). One end of the pull rod (129) is located inside the brake groove (127), and the other end is located outside the brake groove (127). A support spring (130) is sleeved on the end of the pull rod (129) located inside the brake groove (127). A limiting ring (132) is also fixedly connected to the outer wall of the pull rod (129). A pull rope (131) is used to fix the brake plate (128) to the brake plate (128); an adjustment assembly (14) is provided between the main guide rail (110) and the secondary guide rail (133), the adjustment assembly (14) includes a fixing block (140), the fixing block (140) is fixedly connected to the ladder surface, and the fixing block (140) is inclinedly arranged between the main guide rail (110) and the secondary guide rail (133); a limiting frame (142) is fixedly connected to one end of the fixing block (140) near the main guide rail (110), a pushing block (141) is slidably connected in the limiting frame (142), the outer wall of the pushing block (141) is provided with an inclined surface, and the ends of the main guide rail (110) and the secondary guide rail (133) that are close to each other are respectively fixed. The ladder surface is connected to a first abutment block (134) and a second abutment block (135). A through window is also provided on the surface of the ladder surface to prevent the ladder surface from obstructing the sliding of the push block (141). The limiting frame (142) is fixedly connected to the fixed shaft (121) through the through window. A pressure rod (144) is slidably connected inside the fixed block (140). A pressure wheel (145) is rotatably connected to one end of the pressure rod (144) away from the fixed block (140). A connecting rod (151) is fixedly connected to one end of the pressure rod (144) inside the fixed block (140). The connecting rod (151) is fixedly connected to the push block (141) through a connecting plate (143). The outside of the pressure rod (144)... A second reset spring (146) is fitted on the outer wall of the connecting rod (151); a limiting block (148) is fixedly connected to the outer wall of the connecting rod (151), the limiting block (148) is set in the shape of a frustum, and a limiting pin (147) is symmetrically fixedly connected to the inner wall of the fixing block (140); a reset block (149) is also slidably connected to the outer wall of the connecting rod (151), the upper and lower end faces of the reset block (149) are both provided with inclined surfaces, and a support ring (150) is fixedly connected to the outer wall of the connecting rod (151) below the reset block (149); a guide wheel (15) is fixedly connected to the back of the upper ladder (4) and the lower ladder (5), and the traction rope (16) is attached to the outside of the guide wheel (15) and the pressure wheel (145).

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