CN111959744A - A door-ladder-integrated gangway door - Google Patents

Abstract

The invention relates to the technical field of aircraft cabin doors, in particular to a door-ladder-integrated gangway door. The inner and outer sides of the lower cabin door are respectively provided with an unlocking mechanism, the inner side of the lower cabin door is provided with a step mechanism, and a passive auxiliary retractable device is also driven between the lower cabin door and the door frame. The gangway door, the overall structure design is reasonable and ingenious, whether in the cabin or outside the cabin door can be opened and closed easily and conveniently, at the same time, the stability is high, the structure is stable, and the design of the throwing mechanism is not easy to damage the whole cabin. The door can be thrown with one key, which greatly improves the safety performance. The design of the ladder mechanism also saves space, makes full use of the structural design of the hatch itself, and greatly improves the practical performance. Damping bars are designed to improve stability and prevent damage to the lower hatch.

Description

A door-ladder-integrated gangway door

technical field

The invention relates to the technical field of aircraft cabin doors, in particular to a door-ladder-integrated gangway door.

Background technique

In the field of the existing aircraft cabin door, the opening and closing usually only adopts a simple locking structure, which has low practical performance and insufficient stability, and cannot meet the needs of light and fast use and production. Therefore, we plan to design a door-ladder-integrated gangway door, which not only ensures the coordination of door-ladder integration and reasonable retraction, but also has the function of emergency throwing, thereby improving the practical performance and stability of the hatch.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the present invention provides a door-ladder integrated gangway door, and the technical problem to be solved is how to relate to a door-ladder integrated gangway door, thereby improving the stability and practicability of the gangway door itself .

In order to solve the above technical problems, the technical solution provided by the present invention is: a door-ladder integrated gangway door, comprising a door frame, an upper cabin door and a lower cabin door are rotatably arranged in the door frame, and a throwing mechanism is arranged around the outside of the door frame, and the throwing mechanism The release mechanism is respectively connected with the upper cabin door and the lower cabin door. The inner and outer sides of the upper cabin door and the lower cabin door are respectively provided with an unlocking mechanism, and the inner side of the lower cabin door is provided with a step mechanism. A passive auxiliary retractable device is also provided for transmission.

Further, both the upper cabin door and the lower cabin door and between the upper cabin door and the lower cabin door and the door frame are sealed.

Further, the top of the upper cabin door is provided with an upper cabin door installation assembly, and the upper cabin door installation assembly includes an upper hinge installation plate arranged on the door frame and an upper hinge plate installation plate arranged on the inner side of the upper cabin door. The upper hinge plate is fixedly arranged on the mounting plate, one end of the upper hinge plate is fixedly connected with the upper hinge plate mounting plate, and the other end of the upper hinge plate is rotated and arranged in the upper hinge mounting plate through the upper hinge shaft. The door frame is vertical.

Further, a lower cabin door installation assembly is provided at the bottom of the lower cabin door, the lower cabin door installation assembly includes a lower hinge installation plate arranged on the outer side of the lower cabin door, and a lower hinge is arranged on the lower hinge installation plate through the rotation of the lower hinge shaft, The rotation direction of the lower hinge is perpendicular to the door frame, and the lower hinge is fixedly connected with the throwing mechanism.

Further, the throwing mechanism includes a first rotating shaft located on the side of the door frame and an upper throwing rack and a lower throwing rack located above and below the door frame, respectively, and both ends of the first rotating shaft are fixedly connected to the inner side of the door frame. The inner throwing handle and the outer throwing handle located on the outer side of the door frame, the first transmission plate is fixedly sleeved on the first rotating shaft, the top of the door frame is provided with a first mounting plate, and the first mounting plate is coaxially rotated through the rotating shaft A first transmission member and a second transmission member are provided. The first transmission member is fixedly connected to the top of the first transmission plate through a hinge, one end of the second transmission member is rotatably connected to the first mounting plate, and the other end of the second transmission member is connected to the first mounting plate. The upper throwing rack is fixedly connected, a second transmission shaft is passed through the upper throwing rack, a third transmission member is slidably sleeved on the second transmission shaft, and one end of the third transmission member is sleeved on the second transmission shaft, and the third transmission member is sleeved on the second transmission shaft. The other end of the three transmission members is fixedly connected with the upper hinge shaft, the bottom of the first transmission plate is fixedly connected with a fourth transmission member through a connecting rod, one end of the fourth transmission member is fixedly connected with the connecting rod, and the other end of the fourth transmission member is fixedly connected with the connecting rod. The shaft is rotatably connected with a fifth transmission piece, one end of the fifth transmission piece is rotatably connected with the fourth transmission piece, and the other end of the fifth transmission piece is fixedly connected with the lower throwing rack, and the transmission connection between the lower throwing rack and the lower hinge has a The sixth transmission.

Further, the first mounting plate, the first transmission member, the second transmission member and the upper hatch mounting assembly respectively have two and are symmetrically arranged at both ends of the upper throwing rack, and one of the upper hatch mounting assemblies and the first rotating The shaft is connected by transmission, and the other upper cabin door installation component is also fixedly connected with an auxiliary throwing hinge, and the auxiliary throwing hinge is connected with the passive auxiliary retracting device through a seventh transmission member.

Further, the passive auxiliary retracting device includes a pulling rope and a damping rod arranged on the inner side of the door frame, one end of the pulling rope is fixedly connected with the lower hatch, and the other end of the pulling rope and the damping rod are driven by the gas strut pin and the throwing mechanism. connect.

Further, the unlocking mechanism comprises an upper cabin door outer handle, an upper cabin door inner handle, a lower cabin door outer handle and a lower cabin door inner handle, the upper cabin door outer handle is located on the outside of the door frame, and the upper cabin door inner handle is located at the inner side of the door frame, The outer handle of the upper cabin door and the inner handle of the upper cabin door are jointly connected with the upper left transmission rod and the upper right transmission rod which are arranged oppositely. The opposite ends of the upper left transmission rod and the upper right transmission rod are respectively connected with the outer handle of the upper cabin door and the inner handle of the upper cabin door. Transmission connection, the opposite ends of the upper left transmission rod and the upper right transmission rod are respectively movably locked and arranged in the door frame, the outer handle of the lower cabin door is located on the outside of the lower cabin door, the inner handle of the lower cabin door is located at the inner side of the lower cabin door, and the lower cabin One end of the door inner handle is rotatably connected with a horizontally arranged first connecting rod through a rotating shaft. One end of the plate is connected with the first connecting rod, and the other end of the rotating connecting plate is connected with a lower left transmission rod and a lower right transmission rod. The opposite ends of the lower left transmission rod and the lower right transmission rod are respectively connected with the rotating connecting plate. The opposite ends of the transmission rod and the lower right transmission rod are respectively movably locked and arranged in the door frame, a second connecting rod is pierced through the outer handle of the lower cabin door, and the second connecting rod is rotatably connected with a third connecting rod through the rotating shaft. The three connecting rods are drivingly connected with the lower right transmission rod.

Further, the outer handle of the upper cabin door and the inner handle of the upper cabin door are close to the bottom of the upper cabin door, the outer handle of the lower cabin door is close to the bottom of the lower cabin door, and the inner handle of the lower cabin door is close to the top of the lower cabin door.

The beneficial effects brought by the technical solution are: the door-ladder-integrated gangway door of the present invention has a reasonable and ingenious overall structure design, and the cabin door can be opened and closed easily and conveniently no matter in the cabin or outside the cabin, and at the same time High stability, stable structure, not easy to be damaged. In addition, the design of the throwing mechanism enables one-key throwing of the entire hatch, which greatly improves the safety performance. The design of the ladder mechanism also saves space, making full use of the structural design of the hatch itself, greatly improving the practical performance. Damping rods are designed to improve stability and prevent damage to the lower hatch.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the front structure schematic diagram of a door-ladder-integrated gangway door in an embodiment of the present invention;

2 is a schematic diagram of the back structure of a door-ladder-integrated gangway door in an embodiment of the present invention;

3 is a schematic diagram of another rear inner structure of a door-ladder-integrated gangway door in an embodiment of the present invention;

4 is a schematic diagram of another rear structure of a door-ladder-integrated gangway door in an embodiment of the present invention;

Fig. 5 is the partial structure schematic diagram of I in Fig. 4;

Fig. 6 is the partial structure schematic diagram of II in Fig. 4;

In the picture: 1-door frame, 2-upper door, 3-lower door, 4-throwing mechanism, 5-unlocking mechanism, 6-step mechanism, 7-passive auxiliary retractable device, 21-upper door installation components, 22-upper hinge mounting plate, 23-upper hinge plate mounting plate, 231-upper hinge plate, 232-upper hinge shaft, 31-lower door installation assembly, 32-lower hinge installation plate, 321-lower hinge shaft, 322-lower hinge, 41-first rotation shaft, 42-upper throwing rack, 43-lower throwing rack, 411-inner throwing handle, 412-outer throwing handle, 44-first transmission plate, 45-throw A mounting plate, 451-first transmission member, 452-second transmission member, 421-second transmission shaft, 422-third transmission member, 442-connecting rod, 441-fourth transmission member, 443-fifth transmission member , 444-sixth transmission piece, 211-auxiliary throwing hinge, 445-seventh transmission piece, 71-pull rope, 72-damping rod, 73-gas strut pin, 511-left upper transmission rod, 512-right upper transmission rod , 541 - first connecting rod, 542 - rotating connecting plate, 543 - lower left transmission rod, 544 - lower right transmission rod, 531 - second connecting rod, 532 - third connecting rod.

Detailed ways

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

As shown in Figures 1 to 6, this door-ladder-integrated gangway door includes a door frame 1, and an upper cabin door 2 and a lower cabin door 3 are rotatably arranged in the door frame 1, so that the upper cabin door 2 and the lower cabin door 3 can be passed through. The rotation of the door frame 1 realizes opening and closing, and the outside of the door frame 1 is provided with a throwing mechanism 4, and the throwing mechanism 4 is connected with the upper cabin door 2 and the lower cabin door 3 respectively by driving, so that the upper cabin can be controlled by controlling the throwing mechanism 4. The quick disassembly of the cabin door 2 and the lower cabin door 3, so as to realize the quick opening of the cabin door, which can be used in some emergency situations. The upper cabin door 2 and the lower cabin door 3 are respectively provided with an unlocking mechanism 5 on the inner and outer sides, so that the upper cabin door 2 and the lower cabin door 3 can be unlocked and opened under normal conditions through the unlocking mechanism 5, and the lower cabin can be unlocked and opened. A step mechanism 6 is provided on the inner side of the door 3, so that the lower cabin door 3 can be opened and rotated, and the step mechanism 6 can provide a step to enter the cabin, which improves the practicability. There is also a transmission between the lower cabin door 3 and the door frame 1. A passive auxiliary retractable device 7 is provided. After the lower cabin door 3 is opened, its inner side will face upwards, and the whole will be located outside the cabin. Therefore, the device can conveniently close the lower cabin door 3 and open it when it is opened. When the cabin door 3 is lowered, it plays a role of limit and fixation.

In this embodiment, the space between the upper cabin door 2 and the lower cabin door 3 and between the upper cabin door 2 and the lower cabin door 3 and the door frame 1 are sealed. 1 must be kept sealed, and the sealing performance can be improved by adding sealing strips or limit guides between the upper cabin door 2 and the lower cabin door 3.

In this embodiment, an upper cabin door mounting assembly 21 is provided at the top of the upper cabin door 2 , and the upper cabin door mounting assembly 21 includes an upper hinge mounting plate 22 disposed on the door frame 1 and a The upper hinge plate mounting plate 23, the upper hinge plate mounting plate 23 is fixedly provided with an upper hinge plate 231, one end of the upper hinge plate 231 is fixedly connected with the upper hinge plate mounting plate 23, and the other end of the upper hinge plate 231 passes through the upper hinge shaft 232 The rotation is arranged in the upper hinge mounting plate 22, and the rotation direction of the upper hinge plate 231 is perpendicular to the door frame 1, so that when the unlocking mechanism 5 of the upper hatch 2 is opened, the upper hatch 2 can be removed from the bottom by applying force. Lift up, the upper hinge plate 231 rotates relative to the upper hinge mounting plate 22 through the upper hinge shaft 232 to drive the upper hatch 2 to rotate together, thereby realizing the opening and closing of the upper hatch 2. The hatch 2 is fixed in the fully open position.

In this embodiment, a lower cabin door mounting assembly 31 is provided at the bottom of the lower cabin door 3 , and the lower cabin door mounting assembly 31 includes a lower hinge mounting plate 32 disposed on the outer side of the lower cabin door 3 , and the lower hinge mounting plate 32 passes through the lower cabin door 3 . The lower hinge shaft 321 is rotatably provided with a lower hinge 322, the rotation direction of the lower hinge 322 is perpendicular to the door frame 1, and the lower hinge 322 is fixedly connected with the throwing mechanism 4, so that after the unlocking mechanism 5 of the lower cabin door 3 is opened, the Applying force can make the lower hinge 322 rotate relative to the throwing mechanism 4 so as to realize the rotational opening and closing of the lower hatch 3 , and after opening, the lower hatch 3 can be fixed to the fully open position by using a locking rope.

In this embodiment, the throwing mechanism 4 includes a first rotating shaft 41 located on the side of the door frame 1 and an upper throwing frame 42 and a lower throwing frame 43 located above and below the door frame 1 respectively. Both ends are respectively fixedly connected with an inner throwing handle 411 located on the inner side of the door frame 1 and an outer throwing handle 412 located on the outer side of the door frame 1, so that whether in the cabin or outside the cabin, the inner throwing handle can be rotated by turning the inner throwing handle 412. 411 or the external throwing handle 412 realizes the operation of the throwing mechanism 4 , thereby realizing the throwing of the upper cabin door 2 and the lower cabin door 3 . Specifically, a first transmission plate 44 is fixedly sleeved on the first rotating shaft 41, a first installation plate 45 is disposed on the top of the door frame 1, and a first transmission member 451 and a first transmission member 451 and The second transmission member 452, the first transmission member 451 is fixedly connected to the top of the first transmission plate 44 through a hinge, one end of the second transmission member 452 is rotatably connected to the first mounting plate 45, and the other end of the second transmission member 452 is connected to the upper The throwing rack 42 is fixedly connected, the upper throwing rack 42 is provided with a second transmission shaft 421, a third transmission member 422 is slidably sleeved on the second transmission shaft 421, and the other end of the third transmission member 422 is connected to the upper hinge The shaft 232 is fixedly connected, so that by rotating the inner throwing handle 411 or the outer throwing handle 412, the first rotating shaft 41 will rotate to drive the first transmission plate 44 to rotate, and then drive the first transmission member 451 to rotate through the hinge. After the one end of the second transmission member 452 that overlaps with the first transmission member 451 is subjected to force, the other end of the second transmission member 452 will also rotate, thereby driving the upper throwing rack 42 to move, and the movement of the upper throwing frame 42 will drive the second transmission shaft 421 Rotation, thereby driving the third transmission member 422 to rotate, and finally driving the upper hinge shaft 232 to move, so that it is released from the upper hinge mounting plate 22 and the upper hinge plate 231, so that the upper hatch 2 is released from the throwing mechanism 2. Thereby, the throwing of the upper hatch 2 is achieved. A fourth transmission member 441 is fixedly connected to the bottom of the first transmission plate 44 through a connecting rod 442. One end of the fourth transmission member 441 is fixedly connected to the connecting rod 442, and the other end of the fourth transmission member 441 is coaxially connected to a fifth transmission member. One end of the fifth transmission member 443 is rotatably connected with the fourth transmission member 441, the other end of the fifth transmission member 443 is fixedly connected with the lower throwing rack 43, and the lower throwing rack 43 and the lower hinge 322 are connected by a transmission The sixth transmission member 444, so that when the first rotating shaft 41 rotates to drive the first transmission plate 44 to rotate, the connecting rod 442 will drive the fourth transmission member 441 to rotate, and then drive the fifth transmission member 443 to rotate, resulting in the lower throwing When the rack 43 moves, the sixth transmission member 444 also rotates accordingly, so that the lower hinge 322 is disengaged from the lower throwing rack 43 , and finally the throwing of the lower hatch 3 is realized. The whole hinge and link mechanism make it possible to drop the upper hatch 2 and the lower hatch 3 only by turning the handle. The handle can be easily turned both inside and outside the cabin, and the operation is simple, fast and efficient.

In this embodiment, there are two first mounting plates 45 , first transmission members 451 , second transmission members 452 and upper hatch mounting assemblies 21 and are symmetrically arranged at both ends of the upper throwing rack 42 , and one of the upper The cabin door mounting assembly 21 is connected with the first rotating shaft 41 in a driving manner, and the other upper cabin door mounting assembly 21 is also fixedly connected with an auxiliary throwing hinge 211 . The device 7 is connected by transmission, so that the working stability of the throwing mechanism 4 can be improved, and it can be stably installed outside the door frame 1 when not throwing. The auxiliary throwing hinge 211 and the seventh transmission member 445 can make the throwing mechanism 4 It will not affect the passive auxiliary retractable device 7 during operation.

In this embodiment, the passive auxiliary retractable device 7 includes a pull cord 71 and a damping rod 72 arranged inside the door frame 1 , one end of the pull cord 71 is fixedly connected to the lower hatch 3 , and the other end of the pull cord 71 is connected to the damping rod 72 is drivingly connected with the throwing mechanism 4 through the gas strut pin 73, so that the device can use the damping rod 72 when the lower hatch 3 is opened to prevent it from rotating too fast and causing damage, and the other side of the door frame 1 is also provided with a limit The device is used to limit the open lower cabin door 3. When the lower cabin door 3 needs to be closed in the cabin, the staff can simply pull the lower cabin door 3 by pulling the pull rope 71 to turn around to close it without reaching the door frame. 1 The lower hatch is pulled externally 3, which simplifies the operation and improves the safety performance.

In this embodiment, the unlocking mechanism 5 includes an upper cabin door outer handle 51, an upper cabin door inner handle 52, a lower cabin door outer handle 53 and a lower cabin door inner handle 54, and the upper cabin door outer handle 51 is located outside the door frame 1, The upper cabin door inner handle 52 is located on the inner side of the door frame 1, and the upper cabin door outer handle 51 and the upper cabin door inner handle 52 are jointly connected to the upper left transmission rod 511 and the upper right transmission rod 512, the upper left transmission rod 511 and the upper right transmission rod. The opposite end of 512 is respectively connected with the upper cabin door outer handle 51 and the upper cabin door inner handle 52, and the opposite end of the upper cabin door is respectively movably locked and arranged on the locking door frame 1, usually located on both sides of the door frame 1, so that it can be The upper left transmission rod 511 and the upper right transmission rod 512 can be released from the door frame 1 by turning the outer handle 51 of the upper cabin door or the inner handle 52 of the upper cabin door, thereby realizing the opening of the upper cabin door 2 . The lower cabin door outer handle 53 is located on the outside of the lower cabin door 3, the lower cabin door inner handle 54 is located at the inner side of the lower cabin door 3, and one end of the lower cabin door inner handle 54 is connected with a horizontally arranged first connecting rod 541 through a rotating shaft. One end of the first connecting rod 541 is rotatably connected with the inner handle 54 of the lower cabin door, the other end of the first connecting rod 541 is abutted against a rotating connecting plate 542, one end of the rotating connecting plate 542 is connected with the first connecting rod 541, and the rotating connecting rod 542 is connected to the first connecting rod 541. The other end of the connecting plate 542 is drivingly connected with the lower left transmission rod 543 and the lower right transmission rod 544. The opposite ends of the lower left transmission rod 543 and the lower right transmission rod 544 are respectively connected with the rotating connection plate 542 for transmission. The opposite end of the transmission rod 544 is respectively movably locked and arranged in the door frame 1, and a second connecting rod 531 is pierced through the outer handle 53 of the lower cabin door. The third connecting rod 532 is drivingly connected with the lower right transmission rod 544, so that by rotating the lower door outer handle 53 or the lower cabin door inner handle 54, the left lower transmission rod 543 and the right lower transmission rod 544 can be respectively removed from the door frame 1. come out, and then realize the opening of the lower cabin door 3 . The overall operation is simple and quick, and the upper cabin door 2 and the lower cabin door 3 can be opened separately whether it is outside the cabin door or inside the cabin door, with high practicability and high stability.

In this embodiment, the upper cabin door outer handle 51 and the upper cabin door inner handle 52 are close to the bottom of the upper cabin door 2, the lower cabin door outer handle 53 is close to the bottom of the lower cabin door 3, and the lower cabin door inner handle 54 is close to the lower cabin The top of the door 3, so that when the staff needs to enter from the outside, the lower cabin door 3 can be opened by opening the outer handle 53 of the lower cabin door from the bottom, and then open the upper cabin after walking up the stairs on the upper and lower cabin door 3. The upper cabin door outer handle 51 at the bottom of the door 2 can easily open the upper cabin door 2. When the upper cabin door 2 and the lower cabin door 3 need to be closed in the cabin, it is only necessary to push the upper cabin door 2 back and pull the upper cabin. The inner door handle 52 can realize the locking of the upper cabin door 2, and then pull the lower cabin door 3 back through the passive auxiliary retractable device 7 and pull the inner handle 54 of the lower cabin door to realize the locking of the lower cabin door 3. The overall operation is simple, the structure is ingenious, and the practicability is high.

The working flow of a door-ladder-integrated gangway door of the present invention is:

Boarding switch door: Before entering the cabin, the operator first stands on the door frame 1000 and lifts the lower cabin door 3 lightly with one hand, and pulls the outer handle 53 of the lower cabin door diagonally rearward with the other hand to unlock the lower cabin door 3. Back about half a meter, after the lower cabin door 3 is fully opened, step on the step mechanism 6, and after reaching the second step pedal, pull the upper cabin door outer handle 51 to open the upper cabin door 2, and retract the upper cabin door 2 to Fully open, use the locking pull cord to lock the upper hatch 2 to the fully open position. After entering the cabin, the operator squatted down and took off the pull rope 71 from the lower cabin door 3. When standing up, he pulled out all the pull rope 71 and then continued to pull until the lower cabin door 3 was completely pulled close to the door. After closing, lock the lower hatch 3 in place by hand, and fix one end of the pull rope 71 to the lower hatch 3. After the lower hatch 3 is closed, the operator releases the locking pull rope of the upper hatch 2 , close the upper hatch.

Off-camera door switch: When in the cabin, the operator pulls the inner handle 52 of the upper cabin door to unlock the upper cabin door 2, drags it upward until the upper cabin door 2 is fully opened, and uses the locking rope to lock the upper cabin door 2 to fully open position, and then pull the inner handle 54 of the lower cabin door to unlock the lower cabin door 3, gently push the lower cabin door 3 outward to make it fully open under the action of gravity, when the operator walks to the door frame 1, first open the upper cabin door Release the locking rope of 2, hold the upper door 2 with one hand, stand on the second step pedal, close the upper door 2, after leaving the pedal, hold the lower door 3 with both hands and place the lower door 3 closure.

Emergency throwing: turn the inner throwing handle 411 or the outer throwing handle 412 downward to realize the opinion throwing, and the lower hinge 322 is released from the lower throwing rack 43 through the transmission action of the connecting rod, the hinge and each connecting piece, The lower hatch 3 can be thrown away, and the upper hinge shaft 232 can be released from the upper hinge mounting plate 22 and the upper hinge plate 231 at the same time.

To sum up, the door-ladder-integrated gangway door of the present invention has a reasonable and ingenious overall structure design, and the cabin door can be easily and conveniently opened and closed no matter in the cabin or outside the cabin, and at the same time, the stability is high and the structure is stable. , is not prone to damage. In addition, the design of the throwing mechanism enables one-key throwing of the entire hatch, which greatly improves the safety performance. The design of the ladder mechanism also saves space, makes full use of the structural design of the hatch itself, and greatly improves the practical performance. Damping bars are designed to improve stability and prevent damage to the lower hatch.

Finally, it should be noted that the above is only a preferred example of the present invention, and is not intended to limit the present invention. Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features therein. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. A door-ladder-integrated gangway door, characterized in that it comprises a door frame (1), and an upper cabin door (2) and a lower cabin door (3) are rotatably provided in the door frame (1), and the door frame (1) ) is provided with a throwing mechanism (4) around the outside, and the throwing mechanism (4) is connected with the upper cabin door (2) and the lower cabin door (3) by driving respectively, and the upper cabin door (2) ) and the inner and outer sides of the lower cabin door (3) are respectively provided with an unlocking mechanism (5), the inner side of the lower cabin door (3) is provided with a step mechanism (6), the lower cabin door (3) ) and the door frame (1) are also provided with a passive auxiliary retractable device (7). 2. A door-ladder-integrated gangway door according to claim 1, characterized in that: between the upper cabin door (2) and the lower cabin door (3) and between the upper cabin door (2) The lower cabin door (3) is sealed with the door frame (1), respectively. 3. A door-ladder-integrated gangway door according to claim 1, characterized in that: an upper cabin door mounting assembly (21) is provided at the top of the upper cabin door (2), and the upper cabin door is installed The assembly (21) comprises an upper hinge mounting plate (22) arranged on the door frame (1) and an upper hinge plate mounting plate (23) arranged on the inner side of the upper hatch (2), the upper hinge plate An upper hinge plate (231) is fixedly arranged on the mounting plate (23), one end of the upper hinge plate (231) is fixedly connected with the upper hinge plate mounting plate (23), and the other side of the upper hinge plate (231) is fixedly connected. One end is rotatably arranged in the upper hinge mounting plate (22) through the upper hinge shaft (232), and the rotation direction of the upper hinge plate (231) is perpendicular to the door frame (1). 4. A door-ladder-integrated gangway door according to claim 1, characterized in that: a lower cabin door mounting assembly (31) is provided at the bottom of the lower cabin door (3), and the lower cabin door is installed The assembly (31) includes a lower hinge mounting plate (32) arranged on the outer side of the lower hatch (3), and a lower hinge (322) is rotated on the lower hinge mounting plate (32) through a lower hinge shaft (321). ), the rotation direction of the lower hinge (322) is perpendicular to the door frame (1), and the lower hinge (322) is fixedly connected with the throwing mechanism (4). 5. A door-ladder-integrated gangway door according to claim 3 or 4, characterized in that: the throwing mechanism (4) comprises a first rotating shaft (41) located on the side of the door frame (1) and an upper throwing rack (42) and a lower throwing rack (43) located above and below the door frame (1) respectively, and two ends of the first rotating shaft (41) are respectively fixedly connected with (1) The inner throwing handle (411) on the inner side and the outer throwing handle (412) on the outer side of the door frame (1), the first rotating shaft (41) is fixedly sleeved with a first transmission plate (44), a first mounting plate (45) is provided on the top of the door frame (1), and a first transmission member (451) and a second transmission are provided on the first mounting plate (45) through the coaxial rotation of the rotating shaft The first transmission member (451) is fixedly connected to the top of the first transmission plate (44) through a hinge, and one end of the second transmission member (452) is connected to the first mounting plate (452). 45) Rotating connection, the other end of the second transmission member (452) is fixedly connected with the upper throwing rack (42), and the upper throwing rack (42) is provided with a second transmission shaft (421) , a third transmission member (422) is slidably sleeved on the second transmission shaft (421), and one end of the third transmission member (422) is sleeved on the second transmission shaft (421). The other end of the third transmission member (422) is fixedly connected with the upper hinge shaft (232), and the bottom of the first transmission plate (44) is fixedly connected with a fourth transmission member (441) through a connecting rod (442), One end of the fourth transmission member (441) is fixedly connected with the connecting rod (442), and the other end of the fourth transmission member (441) is coaxially rotatably connected with a fifth transmission member (443). One end of the fifth transmission member (443) is rotatably connected to the fourth transmission member (441), and the other end of the fifth transmission member (443) is fixedly connected to the lower throwing rack (43). A sixth transmission member (444) is drivingly connected between the rack (43) and the lower hinge (322). 6. A door-ladder-integrated gangway door according to claim 5, characterized in that: the first mounting plate (45), the first transmission member (451), the second transmission member (452) and the There are two upper hatch mounting assemblies (21) respectively and are symmetrically arranged at both ends of the upper throwing rack (42), one of the upper hatch mounting assemblies (21) and the first rotating shaft (41) ) drive connection, and another upper hatch door mounting assembly (21) is also fixedly connected with an auxiliary throwing hinge (211), and the auxiliary throwing hinge (211) is connected to the no The source auxiliary retractor (7) is connected in a drive. 7. A door-ladder-integrated gangway door according to claim 5, characterized in that: the passive auxiliary retractable device (7) comprises a pull rope (71) arranged on the inner side of the door frame (1) and A damping rod (72), one end of the pulling rope (71) is fixedly connected to the lower hatch (3), and the other end of the pulling rope (71) and the damping rod (72) are pinned through a gas strut (73) is drivingly connected with the throwing mechanism (4). 8. A door-ladder-integrated gangway door according to claim 1, wherein the unlocking mechanism (5) comprises an upper cabin door outer handle (51), an upper cabin door inner handle (52), a lower cabin door A door outer handle (53) and a lower cabin door inner handle (54), the upper cabin door outer handle (51) is located on the outer side of the door frame (1), and the upper cabin door inner handle (52) is located on the door frame On the inner side of (1), the upper cabin door outer handle (51) and the upper cabin door inner handle (52) are connected to the upper left transmission rod (511) and the upper right transmission rod (512) oppositely. The opposite ends of the upper left transmission rod (511) and the upper right transmission rod (512) are respectively connected to the outer handle (51) of the upper cabin door and the inner handle (52) of the upper cabin door, and the upper left transmission rod (511) and the opposite end of the upper right transmission rod (512) are respectively movably locked in the door frame (1), and the lower cabin door outer handle (53) is located in the lower cabin door (3) The outer side of the lower cabin door (54) is located on the inner side of the lower cabin door (3), and one end of the lower cabin door inner handle (54) is connected with a horizontally arranged first connecting rod ( 541), one end of the first connecting rod (541) is rotatably connected with the inner handle (54) of the lower cabin door, and the other end of the first connecting rod (541) is abutted against a rotating connecting plate (542). , one end of the rotating connecting plate (542) is connected with the first connecting rod (541), and the other end of the rotating connecting plate (542) is drivingly connected with the lower left transmission rod (543) and the lower right transmission rod ( 544), the opposite ends of the lower left transmission rod (543) and the lower right transmission rod (544) are respectively connected to the rotating connecting plate (542) for transmission, and the lower left transmission rod (543) and the right The opposite ends of the lower transmission rod (544) are respectively movably locked and arranged in the door frame (1), and a second connecting rod (531) is pierced through the outer handle (53) of the lower cabin door. The two connecting rods (531) are rotatably connected with a third connecting rod (532) through a rotating shaft, and the third connecting rod (532) is drivingly connected with the lower right transmission rod (544). 9. A door-ladder-integrated gangway door according to claim 8, characterized in that: the upper cabin door outer handle (51) and the upper cabin door inner handle (52) are close to the upper cabin door (52). 2), the outer handle (53) of the lower cabin door is close to the bottom of the lower cabin door (3), and the inner handle (54) of the lower cabin door is close to the top of the lower cabin door (3).

Images