A door-ladder integrated gangway door

Abstract

The present invention relates to the technical field of aircraft cabin doors, and specifically to a door-and-ladder integrated gangway door, comprising a door frame, an upper cabin door and a lower cabin door are rotatably arranged in the door frame, a throwing mechanism is arranged around the outside of the door frame, unlocking mechanisms are respectively arranged on the inner and outer sides of the upper cabin door and the lower cabin door, a step mechanism is arranged on the inner side of the lower cabin door, and a passive auxiliary retracting device is also arranged between the lower cabin door and the door frame. A door-and-ladder integrated gangway door is invented, the overall structural design is reasonable and ingenious, the cabin door can be easily and conveniently opened and closed whether inside or outside the cabin, and at the same time, the stability is high, the structure is stable, and it is not easy to be damaged. The design of the throwing mechanism enables the overall cabin door to be thrown with one button, which greatly improves the safety performance. The design of the step mechanism also saves space, makes full use of the structural design of the cabin door itself, and greatly improves the practical performance. The design of the damping rod can improve stability and prevent the lower cabin door from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of aircraft cabin doors, and in particular to a door-and-ladder integrated gangway door. Background Art

[0002] In the existing aircraft cabin door field, its opening and closing usually only adopts a simple locking structure, which has low practical performance and insufficient stability, and cannot meet the requirements of light, 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 and release, but also has the function of emergency jettisoning, thereby improving the practical performance and stability of the cabin door. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a door-and-ladder integrated gangway door. The technical problem to be solved is how to provide a door-and-ladder integrated gangway door so as to improve the stability and practicality of the gangway door itself.

[0004] 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 door and a lower door are rotatably arranged in the door frame, a throwing mechanism is arranged around the outside of the door frame, the throwing mechanism is respectively connected with the upper door and the lower door by transmission, unlocking mechanisms are respectively arranged on the inner and outer sides of the upper door and the lower door, a step mechanism is arranged on the inner side of the lower door, and a passive auxiliary retracting and releasing device is also transmitted and arranged between the lower door and the door frame.

[0005] Furthermore, the upper door and the lower door are sealed, as well as the upper door and the lower door and the door frames.

[0006] Furthermore, an upper door mounting assembly is provided at the top of the upper door, and the upper door mounting assembly includes an upper hinge mounting plate arranged on the door frame and an upper hinge plate mounting plate arranged on the inner side of the upper door, an upper hinge plate is fixedly arranged on the upper hinge plate mounting plate, one end of the upper hinge plate is fixedly connected to the upper hinge plate mounting plate, and the other end of the upper hinge plate is rotatably arranged in the upper hinge mounting plate through an upper hinge shaft, and the rotation direction of the upper hinge plate is perpendicular to the door frame.

[0007] Furthermore, a lower door installation assembly is provided at the bottom of the lower door, and the lower door installation assembly includes a lower hinge installation plate arranged on the outer side of the lower door, and a lower hinge is rotatably provided on the lower hinge installation plate through a lower hinge shaft, and the rotation direction of the lower hinge is perpendicular to the door frame, and the lower hinge is fixedly connected to the launching mechanism.

[0008] Furthermore, the throwing mechanism includes a first rotating shaft located on the side of the door frame and an upper throwing frame and a lower throwing frame respectively located above and below the door frame, the two ends of the first rotating shaft are respectively fixedly connected with an inner throwing handle located on the inner side of the door frame and an outer throwing handle located on the outer side of the door frame, a first transmission plate is fixedly sleeved on the first rotating shaft, a first mounting plate is provided on the top of the door frame, a first transmission member and a second transmission member are coaxially rotatably provided on the first mounting plate via a rotating shaft, the first transmission member is fixedly connected to the top of the first transmission plate via a hinge, one end of the second transmission member is rotatably connected to the first mounting plate, and the second transmission member The other end is fixedly connected with the upper launching rack, a second transmission shaft is passed through the upper launching rack, a third transmission member is slidably sleeved on the second transmission shaft, one end of the third transmission member is sleeved on the second transmission shaft, the other end of the third transmission member 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, the other end of the fourth transmission member is coaxially rotatably connected with a fifth transmission member, one end of the fifth transmission member is rotatably connected with the fourth transmission member, the other end of the fifth transmission member is fixedly connected with the lower launching rack, and a sixth transmission member is transmission-connected between the lower launching rack and the lower hinge.

[0009] Furthermore, there are two first mounting plates, two first transmission members, two second transmission members and two upper door mounting assemblies respectively and they are symmetrically arranged at both ends of the upper launching frame, one of the upper door mounting assemblies is transmission-connected to the first rotating shaft, and the other upper door mounting assembly is also fixedly connected to an auxiliary launching hinge, and the auxiliary launching hinge is transmission-connected to the passive auxiliary retracting device through a seventh transmission member.

[0010] Furthermore, the passive auxiliary retracting and releasing device includes a pull rope and a damping rod arranged on the inner side of the door frame, one end of the pull rope is fixedly connected to the lower hatch, and the other end of the pull rope and the damping rod are transmission-connected to the launching mechanism through a gas strut pin.

[0011] Furthermore, the unlocking mechanism comprises an upper hatch door outer handle, an upper hatch door inner handle, a lower hatch door outer handle and a lower hatch door inner handle, the upper hatch door outer handle is located on the outer side of the door frame, the upper hatch door inner handle is located on the inner side of the door frame, the upper hatch door outer handle and the upper hatch door inner handle are commonly transmission-connected with an upper left transmission rod and an upper right transmission rod which are relatively arranged, the opposite ends of the upper left transmission rod and the upper right transmission rod are transmission-connected with the upper hatch door outer handle and the upper hatch door inner handle respectively, the other 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 lower hatch door outer handle is located on the outer side of the lower hatch door, the lower hatch door inner handle is located on the inner side of the lower hatch door, and one end of the lower hatch door inner handle is connected by The rotating shaft is rotatably connected to a horizontally arranged first connecting rod, one end of the first connecting rod is rotatably connected to the lower hatch inner handle, the other end of the first connecting rod is abutted against a rotatable connecting plate, one end of the rotatable connecting plate is connected to the first connecting rod, and the other end of the rotatable connecting plate is transmission-connected to 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 transmission-connected to the rotatable connecting plate, the other opposite ends of the lower left transmission rod and the lower right transmission rod are respectively movably locked in the door frame, a second connecting rod is passed through the lower hatch outer handle, the second connecting rod is rotatably connected to a third connecting rod through a rotating shaft, and the third connecting rod is transmission-connected to the lower right transmission rod.

[0012] Further, the upper door outer handle and the upper door inner handle are close to the bottom of the upper door, the lower door outer handle is close to the bottom of the lower door, and the lower door inner handle is close to the top of the lower door.

[0013] The beneficial effects brought about by the technical solution are as follows: the door-ladder-in-one gangway door of the present invention has a reasonable and ingenious overall structural design, and the door can be easily and conveniently opened and closed whether inside or outside the cabin. At the same time, it has high stability, stable structure, and is not easy to be damaged. In addition, the design of the launching mechanism enables the entire door to be launched with one button, which greatly improves the safety performance. The design of the ladder mechanism also saves space, makes full use of the structural design of the door itself, and greatly improves the practical performance. The design of the damping rod can improve stability and prevent damage to the lower door. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a front structural schematic diagram of a door-ladder-in-one gangway door of the present invention in an embodiment;

[0016] Figure 2 It is a schematic diagram of the back structure of a door-ladder-in-one gangway door of the present invention in an embodiment;

[0017] Figure 3 It is another schematic diagram of the internal structure of the back side of a door-ladder-in-one gangway door in an embodiment of the present invention;

[0018] Figure 4 It is another schematic diagram of the back structure of a door-ladder-in-one gangway door in an embodiment of the present invention;

[0019] Figure 5 for Figure 4 Schematic diagram of the local structure at position Ⅰ;

[0020] Figure 6 for Figure 4 Schematic diagram of the local structure at center Ⅱ;

[0021] In the figure: 1-door frame, 2-upper hatch, 3-lower hatch, 4-throwing mechanism, 5-unlocking mechanism, 6-step mechanism, 7-passive auxiliary retracting device, 21-upper hatch installation assembly, 22-upper hinge installation plate, 23-upper hinge plate installation plate, 231-upper hinge plate, 232-upper hinge shaft, 31-lower hatch installation assembly, 32-lower hinge installation plate, 321-lower hinge shaft, 322-lower hinge, 41-first rotating shaft, 42-upper throwing rack, 43-lower throwing rack, 411-inner throwing handle, 412-outer throwing handle, 44-first transmission plate, 45-first 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 member, 211-auxiliary launching hinge, 445-seventh transmission member, 71-pull rope, 72-damping rod, 73-gas strut pin, 511-upper left transmission rod, 512-upper right 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 DESCRIPTION

[0022] The preferred examples of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred examples described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] like Figures 1 to 6As shown, the door-ladder-in-one gangway door comprises a door frame 1, in which an upper door 2 and a lower door 3 are rotatably arranged, so that the upper door 2 and the lower door 3 can be opened and closed by rotating them, and a throwing mechanism 4 is arranged around the outside of the door frame 1, and the throwing mechanism 4 is respectively connected with the upper door 2 and the lower door 3 by transmission, so that the upper door 2 and the lower door 3 can be quickly disassembled by controlling the throwing mechanism 4, thereby realizing the rapid opening of the doors, which can be used in some emergency situations. Unlocking mechanisms 5 are respectively provided on the inner and outer sides of the upper door 2 and the lower door 3, so that the unlocking mechanism 5 can be used to unlock and open the upper door 2 and the lower door 3 under normal circumstances. A step mechanism 6 is provided on the inner side of the lower door 3, so that after the lower door 3 is opened and rotated, the step mechanism 6 can provide a step for entering the cabin, thereby improving practicality. A passive auxiliary retracting device 7 is also provided between the lower door 3 and the door frame 1. Since the inner side of the lower door 3 will face upward after opening and the whole will be located outside the cabin, the device can facilitate the closing of the lower door 3 and play a role of limiting and fixing when the lower door 3 is opened.

[0024] In this embodiment, a seal is arranged between the upper door 2 and the lower door 3, and between the upper door 2 and the lower door 3 and the door frame 1 respectively. Due to the use requirements of the aircraft, each door must be sealed with the door frame 1 when it is closed. The sealing performance can be improved by adding a sealing strip or a limit guide between the upper door 2 and the lower door 3.

[0025] In this embodiment, an upper door mounting assembly 21 is provided at the top of the upper door 2, and the upper door mounting assembly 21 includes 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 door 2, and an upper hinge plate 231 is fixedly provided on the upper hinge plate mounting plate 23, one end of the upper hinge plate 231 is fixedly connected to the upper hinge plate mounting plate 23, and the other end of the upper hinge plate 231 is rotatably arranged in the upper hinge mounting plate 22 through an upper hinge shaft 232, 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 door 2 is opened, the upper door 2 can be lifted from the bottom by applying force, and the upper hinge plate 231 rotates relative to the upper hinge mounting plate 22 through the upper hinge shaft 232, thereby driving the upper door 2 to rotate together, thereby realizing the opening and closing of the upper door 2, and after opening, the locking rope can be used to fix the upper door 2 to the fully open position.

[0026] In this embodiment, a lower door installation assembly 31 is provided at the bottom of the lower door 3, and the lower door installation assembly 31 includes a lower hinge installation plate 32 arranged on the outer side of the lower door 3, and a lower hinge 322 is rotatably provided on the lower hinge installation plate 32 through a lower hinge shaft 321, and the rotation direction of the lower hinge 322 is perpendicular to the door frame 1, and the lower hinge 322 is fixedly connected to the throwing mechanism 4, so that when the unlocking mechanism 5 of the lower door 3 is opened, the lower hinge 322 can be rotated relative to the throwing mechanism 4 by applying force to realize the rotation opening and closing of the lower door 3, and after opening, the locking rope can be used to fix the lower door 3 to the fully open position.

[0027] In this embodiment, the launching mechanism 4 includes a first rotating shaft 41 located on the side of the door frame 1 and an upper launching frame 42 and a lower launching frame 43 respectively located above and below the door frame 1. The two ends of the first rotating shaft 41 are respectively fixedly connected with an inner launching handle 411 located on the inner side of the door frame 1 and an outer launching handle 412 located on the outer side of the door frame 1. In this way, the launching mechanism 4 can be operated by rotating the inner launching handle 411 or the outer launching handle 412 whether inside or outside the cabin, thereby realizing the launching 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 mounting plate 45 is provided on the top of the door frame 1, a first transmission member 451 and a second transmission member 452 are coaxially rotatably provided on the first mounting plate 45 through a rotating shaft, 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, the other end of the second transmission member 452 is fixedly connected to the upper throwing rack 42, a second transmission shaft 421 is passed through the upper throwing rack 42, 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 fixedly connected to the upper hinge shaft 232, so that the first rotating shaft 41 can be rotated by rotating the inner throwing handle 411 or the outer throwing handle 412. It will rotate and then drive the first transmission plate 44 to rotate, and then drive the first transmission member 451 to rotate through the hinge. After the end of the second transmission member 452 that coincides with the first transmission member 451 is subjected to force, its other end will also rotate, thereby driving the upper launching rack 42 to move. The movement of the upper launching rack 42 will drive the second transmission shaft 421 to rotate, thereby driving the third transmission member 422 to rotate, and finally driving the upper hinge shaft 232 to move, so that it disengages from the upper hinge mounting plate 22 and the upper hinge plate 231, thereby making the upper hatch 2 disengage from the launching mechanism 2, thereby realizing the launching of the upper hatch 2. The bottom of the first transmission plate 44 is fixedly connected to the fourth transmission member 441 through the connecting rod 442, one end of the fourth transmission member 441 is fixedly connected to the connecting rod 442, the other end of the fourth transmission member 441 is coaxially rotatably connected to the fifth transmission member 443, one end of the fifth transmission member 443 is rotatably connected to the fourth transmission member 441, the other end of the fifth transmission member 443 is fixedly connected to the lower launching rack 43, and the sixth transmission member 444 is transmission-connected between the lower launching rack 43 and the lower hinge 322. In this way, 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, causing the lower launching rack 43 to move, and the sixth transmission member 444 will also rotate as a result, so that the lower hinge 322 will disengage from the lower launching rack 43, and finally the launching of the lower hatch 3 is realized. The overall hinge and connecting rod mechanism allows the upper door 2 and the lower door 3 to be dropped simply by turning the handle. The handle can be easily turned whether inside or outside the cabin, and the operation is simple, fast and efficient.

[0028] In this embodiment, there are two first mounting plates 45, first transmission members 451, second transmission members 452 and upper door mounting assemblies 21 respectively and they are symmetrically arranged at both ends of the upper launching frame 42, one of the upper door mounting assemblies 21 is transmission-connected to the first rotating shaft 41, and the other upper door mounting assembly 21 is also fixedly connected to an auxiliary launching hinge 211, and the auxiliary launching hinge 211 is transmission-connected to the passive auxiliary retracting device 7 through the seventh transmission member 445, so that the working stability of the launching mechanism 4 can be improved, and it can also be stably installed outside the door frame 1 when not launching, and the auxiliary launching hinge 211 and the seventh transmission member 445 can ensure that the passive auxiliary retracting device 7 will not be affected when the launching mechanism 4 is in operation.

[0029] In this embodiment, the passive auxiliary retracting and releasing device 7 includes a pull rope 71 and a damping rod 72 arranged on the inner side of the door frame 1. One end of the pull rope 71 is fixedly connected to the lower hatch 3, and the other end of the pull rope 71 and the damping rod 72 are transmission-connected to the launching mechanism 4 through a gas strut pin 73. In this way, the device can use the damping rod 72 to prevent the lower hatch 3 from rotating too fast and causing damage when the lower hatch 3 is opened. A limiting device is also provided on the other side of the door frame 1 to limit the opened lower hatch 3. When it is necessary to close the lower hatch 3 in the cabin, the staff can simply pull the pull rope 71 to pull the lower hatch 3 to rotate and close it, without reaching out to the outside of the door frame 1 to pull the lower hatch 3, thereby simplifying the operation and improving the safety performance.

[0030] In the present embodiment, the unlocking mechanism 5 comprises an upper hatch door outer handle 51, an upper hatch door inner handle 52, a lower hatch door outer handle 53 and a lower hatch door inner handle 54. The upper hatch door outer handle 51 is located on the outer side of the door frame 1, and the upper hatch door inner handle 52 is located on the inner side of the door frame 1. The upper hatch door outer handle 51 and the upper hatch door inner handle 52 are commonly connected in transmission with an upper left transmission rod 511 and an upper right transmission rod 512 which are arranged oppositely. The opposite ends of the upper left transmission rod 511 and the upper right transmission rod 512 are respectively connected in transmission with the upper hatch door outer handle 51 and the upper hatch door inner handle 52, and the other opposite ends thereof are respectively movably locked and arranged on the locking door frame 1, usually located on both sides of the door frame 1, so that the upper left transmission rod 511 and the upper right transmission rod 512 can be disengaged from the door frame 1 by rotating the upper hatch door outer handle 51 or the upper hatch door inner handle 52, thereby realizing the opening of the upper hatch door 2. The lower hatch door outer handle 53 is located on the outer side of the lower hatch door 3, and the lower hatch door inner handle 54 is located on the inner side of the lower hatch door 3. One end of the lower hatch door inner handle 54 is rotatably connected to a horizontally arranged first connecting rod 541 through a rotating shaft. One end of the first connecting rod 541 is rotatably connected to the lower hatch door inner handle 54. 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 to the first connecting rod 541. The other end of the rotating connecting plate 542 is transmission-connected to a lower left transmission rod 543 and a lower right transmission rod 544. The lower left transmission rod 543 and the lower right transmission rod 544 are The opposite ends of the upper parts are respectively connected to the rotating connecting plate 542, and the other opposite ends of the lower left transmission rod 543 and the lower right transmission rod 544 are respectively movably locked and arranged in the door frame 1. The lower hatch door outer handle 53 is penetrated with a second connection rod 531, and the second connection rod 531 is rotatably connected to the third connection rod 532 through a rotating shaft, and the third connection rod 532 is connected to the lower right transmission rod 544. In this way, by rotating the lower hatch door outer handle 53 or the lower hatch door inner handle 54, the lower left transmission rod 543 and the lower right transmission rod 544 can be respectively removed from the door frame 1, thereby realizing the opening of the lower hatch door 3. The overall operation is simple and quick, and the upper hatch door 2 and the lower hatch door 3 can be opened separately whether outside or inside the hatch door, with high practicality and strong stability.

[0031] In the present embodiment, the upper door outer handle 51 and the upper door inner handle 52 are close to the bottom of the upper door 2, the lower door outer handle 53 is close to the bottom of the lower door 3, and the lower door inner handle 54 is close to the top of the lower door 3. In this way, when the staff needs to enter from the outside, they can open the lower door 3 by opening the lower door outer handle 53 from the bottom, walk up the stairs on the upper and lower doors 3, and then open the upper door outer handle 51 at the bottom of the upper door 2, so as to open the upper door 2 very conveniently. When the upper door 2 and the lower door 3 need to be closed in the cabin, it is only necessary to push the upper door 2 back and pull the upper door inner handle 52 to lock the upper door 2, and then pull the lower door 3 back and pull the lower door inner handle 54 through the passive auxiliary retracting device 7 to lock the lower door 3. The overall operation is simple, the structure is ingenious, and the practicality is high.

[0032] The working process of a door-ladder integrated gangway door of the present invention is as follows:

[0033] Opening and closing the door on board: Before entering the cabin, the operator first stands on the door frame 1, one hand gently supports the top of the lower cabin door 3, and the other hand pulls the lower cabin door outer handle 53 diagonally backward to unlock the lower cabin door 3. After unlocking, step back about half a meter, wait for the lower cabin door 3 to be fully opened, step on the ladder mechanism 6, go up to the second step pedal, pull the upper cabin door outer handle 51 to open the upper cabin door 2, and hold the upper cabin door 2 until it is fully opened. Use the locking rope to lock the upper cabin door 2 to the fully open position. After entering the cabin, the operator first squats inside to remove the rope 71 from the lower cabin door 3, and in the process of standing up, pull the rope 71 out completely and continue to pull until the lower cabin door 3 is completely pulled to nearly closed, then lock the lower cabin door 3 in place by hand, and fix one end of the rope 71 to the lower cabin door 3. After the lower cabin door 3 is closed, the operator unfastens the locking rope of the upper cabin door 2 and closes the upper cabin door.

[0034] Opening and closing doors off-board: When inside the cabin, the operator pulls the upper door inner handle 52 to unlock the upper door 2, drags it upward until the upper door 2 is fully opened, uses the locking rope to lock the upper door 2 in the fully opened position, and then pulls the lower door inner handle 54 to unlock the lower door 3, and gently pushes the lower door 3 outward to fully open it under the action of gravity. When the operator walks to the door frame 1, he first unties the locking rope of the upper door 2, holds the upper door 2 with one hand, stands on the second step pedal, closes the upper door 2, and after leaving the pedal, holds the lower door 3 with both hands to close it.

[0035] Emergency jettisoning: The emergency jettisoning can be achieved by turning the inner jettisoning handle 411 or the outer jettisoning handle 412 downwards. Through the transmission action of the connecting rod, the hinge and the connecting parts, the lower hinge 322 is disengaged from the lower jettisoning frame 43 to achieve the jettisoning of the lower hatch 3. At the same time, the upper hinge shaft 232 is disengaged from the upper hinge mounting plate 22 and the upper hinge plate 231. The upper hatch 2 can be taken out after falling under gravity to achieve the jettisoning.

[0036] In summary, the door-ladder-in-one gangway door of the present invention has a reasonable and ingenious overall structural design. The door can be easily and conveniently opened and closed whether inside or outside the cabin. At the same time, it has high stability, stable structure, and is not easy to be damaged. In addition, the design of the launching mechanism enables the entire door to be launched with one button, which greatly improves the safety performance. The design of the ladder mechanism also saves space, makes full use of the structural design of the door itself, and greatly improves the practical performance. The design of the damping rod can improve stability and prevent damage to the lower door.

[0037] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A door-ladder integrated gangway door, characterized in that: The invention comprises a door frame (1), wherein an upper door (2) and a lower door (3) are rotatably arranged in the door frame (1), a throwing mechanism (4) is arranged around the outside of the door frame (1), the throwing mechanism (4) is respectively connected to the upper door (2) and the lower door (3) in a transmission manner, an unlocking mechanism (5) is respectively arranged on the inner and outer sides of the upper door (2) and the lower door (3), a step mechanism (6) is arranged on the inner side of the lower door (3), and a passive auxiliary retracting device (7) is also arranged in a transmission manner between the lower door (3) and the door frame (1); An upper door installation assembly (21) is arranged at the top of the upper door (2), and the upper door installation assembly (21) comprises an upper hinge installation plate (22) arranged on the door frame (1) and an upper hinge plate installation plate (23) arranged on the inner side of the upper door (2), an upper hinge plate (231) is fixedly arranged on the upper hinge plate installation plate (23), one end of the upper hinge plate (231) is fixedly connected to the upper hinge plate installation plate (23), and the other end of the upper hinge plate (231) is rotatably arranged in the upper hinge installation plate (22) through an upper hinge shaft (232), and the rotation direction of the upper hinge plate (231) is perpendicular to the door frame (1); A lower door installation assembly (31) is provided at the bottom of the lower door (3), and the lower door installation assembly (31) comprises a lower hinge installation plate (32) arranged on the outer side of the lower door (3), a lower hinge (322) is rotatably provided on the lower hinge installation plate (32) via 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 to the ejection mechanism (4); The throwing mechanism (4) comprises 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) respectively located above and below the door frame (1); two ends of the first rotating shaft (41) 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); a first transmission plate (44) is fixedly sleeved on the first rotating shaft (41); a first mounting plate (45) is provided on the top of the door frame (1); a first transmission member (451) and a second transmission member (452) are coaxially rotatably provided on the first mounting plate (45) via a rotating shaft; the first transmission member (451) is fixedly connected to the top of the first transmission plate (44) via 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 throwing frame (42). The upper launching frame (42) is fixedly connected, a second transmission shaft (421) is passed through the upper launching frame (42), a third transmission member (422) is slidably sleeved on the second transmission shaft (421), one end of the third transmission member (422) is sleeved on the second transmission shaft (421), and the other end of the third transmission member (422) is fixedly connected to the upper hinge shaft (232), the bottom of the first transmission plate (44) is fixedly connected to the fourth transmission member (441) through a connecting rod (442), and the One end of the fourth transmission member (441) is fixedly connected to the connecting rod (442), the other end of the fourth transmission member (441) is coaxially rotatably connected to a fifth transmission member (443), one end of the fifth transmission member (443) is rotatably connected to the fourth transmission member (441), the other end of the fifth transmission member (443) is fixedly connected to the lower launching frame (43), and a sixth transmission member (444) is transmission-connected between the lower launching frame (43) and the lower hinge (322); The passive auxiliary retracting and releasing device (7) comprises a pull rope (71) and a damping rod (72) arranged on the inner side of the door frame (1); one end of the pull rope (71) is fixedly connected to the lower hatch (3); the other end of the pull rope (71) and the damping rod (72) are transmission-connected to the launching mechanism (4) via a gas strut pin (73); The unlocking mechanism (5) comprises an upper door outer handle (51), an upper door inner handle (52), a lower door outer handle (53) and a lower door inner handle (54); the upper door outer handle (51) is located on the outer side of the door frame (1); the upper door inner handle (52) is located on the inner side of the door frame (1); the upper door outer handle (51) and the upper door inner handle (52) are jointly transmission-connected to a left upper transmission rod (511) and a right upper transmission rod (512) which are arranged opposite to each other; the left upper transmission rod (511) and the right upper transmission rod (512) are transmission-connected to each other; 1) and one end opposite to the upper right transmission rod (512) are respectively transmission-connected to the upper hatch door outer handle (51) and the upper hatch door inner handle (52); the other ends opposite to the upper left transmission rod (511) and the upper right transmission rod (512) are respectively movably locked and arranged in the door frame (1); the lower hatch door outer handle (53) is located on the outer side of the lower hatch door (3); the lower hatch door inner handle (54) is located on the inner side of the lower hatch door (3); one end of the lower hatch door inner handle (54) is connected to the upper hatch door outer handle (51) and the upper hatch door inner handle (52) by a rotating shaft. The first connecting rod (541) is rotatably connected to a horizontally arranged first connecting rod (541), one end of the first connecting rod (541) is rotatably connected to the lower hatch door inner handle (54), the other end of the first connecting rod (541) is abutted against a rotatable connecting plate (542), one end of the rotatable connecting plate (542) is connected to the first connecting rod (541), and the other end of the rotatable connecting plate (542) is transmission-connected to a lower left transmission rod (543) and a lower right transmission rod (544), the lower left transmission rod (543) and the One opposite end of the lower right transmission rod (544) is respectively transmission-connected to the rotating connecting plate (542); the other opposite ends of the lower left transmission rod (543) and the lower right transmission rod (544) are respectively movably locked in the door frame (1); a second connecting rod (531) is passed through the lower hatch door outer handle (53); the second connecting rod (531) is rotationally connected to a third connecting rod (532) via a rotating shaft; the third connecting rod (532) is transmission-connected to the lower right transmission rod (544).

2. The door-ladder-in-one gangway door according to claim 1, characterized in that: The upper hatch door (2) and the lower hatch door (3) as well as the upper hatch door (2) and the lower hatch door (3) and the door frame (1) are sealed.

3. The door-ladder-in-one gangway door according to claim 1, characterized in that: The first mounting plate (45), the first transmission member (451), the second transmission member (452) and the upper door mounting assembly (21) are respectively provided in two pieces and are symmetrically arranged at the two ends of the upper launching frame (42), one of the upper door mounting assemblies (21) is transmission-connected to the first rotating shaft (41), and the other upper door mounting assembly (21) is also fixedly connected to an auxiliary launching hinge (211), and the auxiliary launching hinge (211) is transmission-connected to the passive auxiliary retracting device (7) via a seventh transmission member (445).

4. The door-ladder-in-one gangway door according to claim 1, characterized in that: The upper door outer handle (51) and the upper door inner handle (52) are close to the bottom of the upper door (2), the lower door outer handle (53) is close to the bottom of the lower door (3), and the lower door inner handle (54) is close to the top of the lower door (3).

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