CN212951082U

CN212951082U - Door ladder integrated type ship side ladder door

Info

Publication number: CN212951082U
Application number: CN202021819856.9U
Authority: CN
Inventors: 席佳胜; 郑国朋; 冯北平; 缪招瑜
Original assignee: Jiangsu Hengmingda Aviation Equipment Co ltd
Current assignee: Jiangsu Hengmingda Aviation Equipment Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-04-13
Anticipated expiration: 2030-08-26

Abstract

The utility model relates to an aircraft hatch door technical field, concretely relates to door ladder unification formula fly ladder door, including the door frame, the door frame internal rotation is provided with hatch door and lower cabin door, the outside of door frame is around being provided with throwing mechanism, it does not is provided with release mechanism to go up to divide equally on the inside and outside of hatch door and lower hatch door, be provided with ladder mechanism on the inboard of lower hatch door, it is provided with passive supplementary winding and unwinding devices to go back the transmission between lower cabin door and the door frame, the utility model relates to a door ladder unification formula fly ladder door, overall structure reasonable in design is ingenious, no matter can all easily conveniently open and close the hatch door in the under-deck or outside the cabin, and stability is high simultaneously, and stable in structure, the design that is difficult to take place to damage throwing mechanism makes whole hatch door can realize a key and throw, has improved. The space is also saved in the design of ladder mechanism, make full use of the structural design of hatch door itself, improved the practicality greatly. The design of damping rod can improve stability, prevents that lower cabin door from taking place to damage.

Description

Door ladder integrated type ship side ladder door

Technical Field

The utility model relates to an aircraft hatch door technical field, concretely relates to door ladder unification formula ship board ladder door.

Background

In the current aircraft hatch door field, its switching only adopts simple shutting structure usually, and practicality is not high, and stability is also not enough, can't satisfy lightly, swift use and production demand. Therefore, the plan designs a ladder-door integrated type ship board ladder door, and the ladder-door integrated type ship board ladder door has the emergency throwing function while ensuring the harmony and reasonable folding and unfolding of the ladder-door integration, so that the practicability and stability of the cabin door are improved.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a door ladder closes formula gangway ladder door, the technical problem that solve how relate to a door ladder closes formula gangway ladder door to improve the stability and the practicality of gangway ladder door itself.

In order to solve the technical problem, the utility model provides a technical scheme is: the utility model provides a door ladder unification formula gangway ladder door, includes the door frame, and the door frame internal rotation is provided with hatch door and lower door, and the outside of door frame is around being provided with throwing mechanism, and throwing mechanism is connected with last hatch door and lower door transmission respectively, and it is provided with unlocking mechanism respectively to equally divide on the inside and outside of last hatch door and lower hatch door, is provided with the ladder mechanism on the inboard of lower hatch door, still transmits between lower door and the door frame and is provided with passive supplementary winding and unwinding devices.

Furthermore, the upper cabin door and the lower cabin door as well as the upper cabin door and the lower cabin door are respectively arranged between the door frames in a sealing way.

Furthermore, an upper cabin door mounting assembly is arranged at the top of the upper cabin door and comprises 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 cabin 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 with the upper hinge plate mounting plate, the other end of the upper hinge plate is rotatably arranged in the upper hinge mounting plate through an upper hinge shaft, and the rotating direction of the upper hinge plate is perpendicular to the door frame.

Furthermore, a lower cabin door installation assembly is arranged at the bottom of the lower cabin door and comprises a lower hinge installation plate arranged on the outer side of the lower cabin door, a lower hinge is rotatably arranged on the lower hinge installation plate through a lower hinge shaft, the rotating 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 comprises a first rotating shaft positioned on the side surface of the door frame, an upper throwing frame and a lower throwing frame respectively positioned above and below the door frame, two ends of the first rotating shaft are respectively and fixedly connected with an inner throwing handle positioned on the inner side of the door frame and an outer throwing handle positioned 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 arranged on the top of the door frame, a first transmission piece and a second transmission piece are coaxially and rotatably arranged on the first mounting plate through a rotating shaft, the first transmission piece is fixedly connected with the top of the first transmission plate through a hinge, one end of the second transmission piece is rotatably connected with the first mounting plate, the other end of the second transmission piece is fixedly connected with the upper throwing frame, a second transmission shaft is arranged on the upper throwing frame in a penetrating manner, a third transmission piece is slidably sleeved on the second transmission shaft, and one end of the third transmission piece is sleeved on the, the other end of the third transmission piece is fixedly connected with the upper hinge shaft, the bottom of the first transmission plate is fixedly connected with a fourth transmission piece through a connecting rod, one end of the fourth transmission piece is fixedly connected with the connecting rod, the other end of the fourth transmission piece is coaxially and rotatably connected with a fifth transmission piece, one end of the fifth transmission piece is rotatably connected with the fourth transmission piece, the other end of the fifth transmission piece is fixedly connected with the lower throwing frame, and a sixth transmission piece is in transmission connection between the lower throwing frame and the lower hinge.

Furthermore, the first mounting plate, the first transmission piece, the second transmission piece and the upper cabin door mounting assembly are respectively provided with two parts which are symmetrically arranged at two ends of the upper throwing frame, one of the upper cabin door mounting assemblies is in transmission connection with the first rotating shaft, the other upper cabin door mounting assembly is also fixedly connected with an auxiliary throwing hinge, and the auxiliary throwing hinge is in transmission connection with the passive auxiliary winding and unwinding device through the seventh transmission piece.

Furthermore, the passive auxiliary retraction device comprises a pull rope and a damping rod which are arranged on the inner side of the door frame, one end of the pull rope is fixedly connected with the lower cabin door, and the other end of the pull rope and the damping rod are in transmission connection with the throwing mechanism through a gas strut pin.

Furthermore, 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 positioned on the outer side of the door frame, the upper cabin door inner handle is positioned on the inner side of the door frame, the upper cabin door outer handle and the upper cabin door inner handle are jointly connected with an upper left transmission rod and an upper right transmission rod which are oppositely arranged in a transmission way, opposite ends of the upper left transmission rod and the upper right transmission rod are respectively connected with the upper cabin door outer handle and the upper cabin door inner handle in a transmission way, opposite ends of the upper left transmission rod and the upper right transmission rod are respectively and movably locked and arranged in the door frame, the lower cabin door outer handle is positioned on the outer side of the lower cabin door, the lower cabin door inner handle is positioned on the inner side of the lower cabin door, one end of the lower cabin door inner handle is rotatably connected with a horizontally arranged first connecting rod through a rotating shaft, one end of the first connecting rod is rotatably connected with the lower, one end of the rotating connecting plate is connected with a first connecting rod, the other end of the rotating connecting plate is connected with a left lower transmission rod and a right lower transmission rod in a transmission mode, the opposite ends of the left lower transmission rod and the right lower transmission rod are respectively connected with the rotating connecting plate in a transmission mode, the opposite ends of the left lower transmission rod and the right lower transmission rod are respectively movably locked and arranged in the door frame, a second connecting rod penetrates through the handle outside the lower cabin door, the second connecting rod is rotatably connected with a third connecting rod through a rotating shaft, and the third connecting rod is connected with the right lower transmission rod in a transmission mode.

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

The beneficial effect that this technical scheme brought is: the utility model relates to a door ladder unification formula ship board ladder door, overall structure reasonable in design is ingenious, no matter can all easily conveniently open and close the hatch door in the under-deck or outside the cabin, and stability is high simultaneously, and stable in structure is difficult to take place to damage. In addition, the whole cabin door can be thrown by one key due to the design of the throwing mechanism, and the safety performance is greatly improved. The space is also saved in the design of ladder mechanism, make full use of the structural design of hatch door itself, improved the practicality greatly. The design of damping rod can improve stability, prevents that lower cabin door from taking place to damage.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic front structural view of a door-ladder integrated type gangway ladder door according to an embodiment of the present invention;

fig. 2 is a schematic back structural view of a door-ladder integrated type gangway ladder door according to an embodiment of the present invention;

fig. 3 is a schematic view of another back internal structure of a door-ladder integrated type gangway ladder door according to an embodiment of the present invention;

fig. 4 is a schematic view of another back structure of a door-ladder integrated type gangway ladder door according to an embodiment of the present invention;

FIG. 5 is a schematic view of a portion of FIG. 4 at I;

FIG. 6 is a schematic view of a portion of the structure at II in FIG. 4;

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

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it should be understood that the preferred embodiments are described herein for purposes of illustration and explanation, and not limitation.

As shown in fig. 1 to 6, the ladder-integrated gangway door comprises a door frame 1, wherein an upper cabin door 2 and a lower cabin door 3 are rotatably arranged in the door frame 1, so that the opening and the closing of the upper cabin door 2 and the lower cabin door 3 can be realized through the rotation of the upper cabin door 2 and the lower cabin door 3, a throwing mechanism 4 is arranged around the outside of the door frame 1, and the throwing mechanism 4 is in transmission connection with the upper cabin door 2 and the lower cabin door 3 respectively, so that the upper cabin door 2 and the lower cabin door 3 can be quickly detached through controlling the throwing mechanism 4, and the cabin doors can be quickly opened and can be used in some emergency situations. It respectively is provided with release mechanism 5 to divide equally on the inside and outside of last hatch door 2 and lower hatch door 3, can make to go up hatch door 2 and lower hatch door 3 through release mechanism 5 and carry out the unblock under the normal condition and open the work, be provided with ladder mechanism 6 on the inboard of lower hatch door 3, can make lower hatch door 3 open and rotatory back ladder mechanism 6 can provide a step that gets into in the cabin like this, the practicality has been improved, it is provided with passive supplementary winding and unwinding devices 7 still to drive between lower hatch door 3 and the door frame 1, because this lower hatch door 3 is opening the back, its inboard will be up, wholly will be located the outside in cabin, therefore the device can conveniently close lower hatch door 3, and play spacing fixed effect when opening lower hatch door 3.

In this embodiment, the upper door 2 and the lower door 3, and the upper door 2 and the lower door 3 are respectively and hermetically disposed with the door frame 1, and because of the use requirement of the aircraft, when each door is closed, the door frame 1 must be kept sealed, and the sealing performance between the upper door 2 and the lower door 3 can be improved by adopting a mode of adding a sealing strip or limiting a guide.

In the present embodiment, an upper door mounting assembly 21 is disposed at the top of the upper door 2, the upper door mounting assembly 21 includes an upper hinge mounting plate 22 disposed on the door frame 1 and an upper hinge plate mounting plate 23 disposed at the inner side of the upper door 2, an upper hinge plate 231 is fixedly disposed 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, the other end of the upper hinge plate 231 is rotatably disposed in the upper hinge mounting plate 22 by 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 hatch 2 can be lifted from the bottom by applying force, 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 realized opening and closing of upper chamber door 2, can adopt the locking stay cord to fix upper chamber door 2 to the complete open position after opening.

In this embodiment, a lower door mounting assembly 31 is disposed at the bottom of the lower door 3, the lower door mounting assembly 31 includes a lower hinge mounting plate 32 disposed at the outer side of the lower door 3, a lower hinge 322 is rotatably disposed on the lower hinge mounting plate 32 through a lower hinge shaft 321, a 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 after the unlocking mechanism 5 of the lower door 3 is opened, the lower hinge 322 can rotate relative to the throwing mechanism 4 by applying a force to open and close the lower door 3, and after the lower door 3 is opened, the lower door 3 can be fixed to a fully opened position by using a locking rope.

In the present embodiment, the throwing mechanism 4 includes a first rotating shaft 41 located at a 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, and both ends of the first rotating shaft 41 are fixedly connected with an inner throwing handle 411 located at an inner side of the door frame 1 and an outer throwing handle 412 located at an outer side of the door frame 1, respectively, so that the operation of the throwing mechanism 4 can be realized by rotating the inner throwing handle 411 or the outer throwing handle 412 no matter in the cabin or outside the cabin, and further, the throwing of the upper cabin door 2 and the lower cabin door 3 can be realized. Specifically, a first rotating shaft 41 is fixedly sleeved with a first driving plate 44, the top of the door frame 1 is provided with a first mounting plate 45, the first mounting plate 45 is coaxially and rotatably provided with a first transmission piece 451 and a second transmission piece 452 through rotating shafts, the first transmission piece 451 is fixedly connected with the top of the first driving plate 44 through a hinge, one end of the second transmission piece 452 is rotatably connected with the first mounting plate 45, the other end of the second transmission piece 452 is fixedly connected with an upper throwing frame 42, a second transmission shaft 421 penetrates through the upper throwing frame 42, a third transmission piece 422 is slidably sleeved on the second transmission shaft 421, and the other end of the third transmission piece 422 is fixedly connected with an upper hinge shaft 232, so that by rotating an inner throwing handle 411 or an outer throwing handle 412, the first rotating shaft 41 can rotate to drive the first driving plate 44 to rotate, and further drive the first transmission piece 451 to rotate through the hinge, after the end of the second transmission member 452, which is overlapped with the first transmission member 451, is subjected to a force, the other end of the second transmission member also rotates to drive the upper throwing frame 42 to move, and the movement of the upper throwing frame 42 drives the second transmission shaft 421 to rotate, so that the third transmission member 422 is driven to rotate, and finally the upper hinge shaft 232 is driven to move, so that the upper hinge shaft 232 is separated from the upper hinge mounting plate 22 and the upper hinge plate 231, so that the upper cabin door 2 is separated from the throwing mechanism 2, and the throwing of the upper cabin door 2 is realized. The bottom of the first transmission plate 44 is fixedly connected with a fourth transmission piece 441 through a connecting rod 442, one end of the fourth transmission piece 441 is fixedly connected with the connecting rod 442, the other end of the fourth transmission piece 441 is coaxially and rotatably connected with a fifth transmission piece 443, one end of the fifth transmission piece 443 is rotatably connected with the fourth transmission piece 441, the other end of the fifth transmission piece 443 is fixedly connected with the lower throwing frame 43, and a sixth transmission piece 444 is in transmission connection between the lower throwing frame 43 and the lower hinge 322, so that when the first rotation shaft 41 rotates to drive the first transmission plate 44 to rotate, the connecting rod 442 drives the fourth transmission piece 441 to rotate, further drives the fifth transmission piece 443 to rotate, the lower throwing frame 43 is caused to move, the sixth transmission piece 444 also rotates, the lower hinge 322 is separated from the lower throwing frame 43, and the throwing of the lower cabin door 3 is finally realized. The whole body can realize the throwing of the upper cabin door 2 and the lower cabin door 3 only by rotating the handle through the hinge and the connecting rod mechanism, the handle can be easily rotated in the cabin or outside the cabin, and the operation is simple, convenient, quick and efficient.

In this embodiment, the first mounting plate 45, the first transmission member 451, the second transmission member 452, and the upper door mounting assembly 21 are respectively and symmetrically disposed at two ends of the upper throwing frame 42, one of the upper door mounting assemblies 21 is in transmission connection with the first rotating shaft 41, the other upper door mounting assembly 21 is further fixedly connected with the auxiliary throwing hinge 211, and the auxiliary throwing hinge 211 is in transmission connection with the passive auxiliary releasing and releasing device 7 through the seventh transmission member 445, so that the working stability of the throwing mechanism 4 can be improved, the auxiliary throwing hinge 211 and the seventh transmission member 445 can be stably mounted outside the door frame 1 when the throwing mechanism 4 is not thrown, and the passive auxiliary releasing and releasing device 7 cannot be affected when the throwing mechanism 4 operates.

In this embodiment, the passive auxiliary retraction device 7 includes a pull rope 71 and a damping rod 72 which are arranged inside the door frame 1, one end of the pull rope 71 is fixedly connected with the lower cabin door 3, the other end of the pull rope 71 and the damping rod 72 are in transmission connection with the throwing mechanism 4 through an air supporting rod pin 73, so that the device can prevent the damage caused by the over-high rotation speed of the lower cabin door 3 by using the damping rod 72 when the lower cabin door 3 is opened, the other side of the door frame 1 is also provided with a limiting device for limiting the opened lower cabin door 3, when the lower cabin door 3 needs to be closed in the cabin, a worker can pull the lower cabin door 3 to rotate to close only by pulling the pull rope 71, the lower cabin door 3 does not need to be pulled outside the door frame 1, the operation is simplified, and the safety performance is improved.

In this embodiment, the unlocking mechanism 5 includes 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 at the outer side of the door frame 1, the upper door inner handle 52 is located at the inner side of the door frame 1, the upper door outer handle 51 and the upper door inner handle 52 are jointly in transmission connection with an upper left transmission rod 511 and an upper right transmission rod 512 which are oppositely arranged, one ends of the upper left transmission rod 511 and the upper right transmission rod 512 are respectively in transmission connection with the upper door outer handle 51 and the upper door inner handle 52, the opposite ends of the locking device are respectively movably locked and arranged on the locking doorframe 1, are usually positioned at the two sides of the doorframe 1, this makes it possible to disengage the upper left transfer lever 511 and the upper right transfer lever 512 from the door frame 1 by rotating the upper door outside handle 51 or the upper door inside handle 52, thereby achieving the opening of the upper door 2. The lower door outer handle 53 is located at the outer side of the lower door 3, the lower door inner handle 54 is located at the inner side of the lower door 3, one end of the lower door inner handle 54 is rotatably 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 lower door inner handle 54, the other end of the first connecting rod 541 is abutted against and provided with a rotating connecting plate 542, one end of the rotating connecting plate 542 is connected with the first connecting rod 541, the other end of the rotating connecting plate 542 is in transmission connection with a left lower transmission rod 543 and a right lower transmission rod 544, the opposite ends of the left lower transmission rod 543 and the right lower transmission rod 544 are respectively in transmission connection with the rotating connecting plate 542 in a transmission manner, the opposite ends of the left lower transmission rod 543 and the right lower transmission rod 544 are respectively and movably locked and arranged in the door frame 1, a second connecting rod 531 is penetrated through the lower door outer handle 53, the second connecting rod 531, the third connecting rod 532 is in transmission connection with the lower right transmission rod 544, so that the lower left transmission rod 543 and the lower right transmission rod 544 can be respectively pulled out from the door frame 1 by rotating the outer lower door handle 53 or the inner lower door handle 54, thereby realizing the opening of the lower door 3. The whole operation is simple, convenient and fast, the upper cabin door 2 and the lower cabin door 3 can be respectively opened no matter outside or inside the cabin door, the practicability is high, and the stability is strong.

In the 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, so that when a worker needs to enter from the outside, the lower door outer handle 53 is opened from the bottom to open the lower door 3, the upper door outer handle 51 positioned at the bottom of the upper door 2 is opened after walking a step on the upper door 3, the upper door 2 is opened very conveniently, when the upper door 2 and the lower door 3 need to be closed in the cabin, the upper door 2 can be locked only by pushing back the upper door 2 and pulling the upper door inner handle 52, and then the lower door 3 is pulled back by the passive auxiliary retracting device 7 and the lower door handle 54 to lock the lower door 3, the whole operation is simple and convenient, the structure is ingenious, the practicability and the function are high.

The utility model relates to a door ladder unification formula boat ladder door's work flow is:

a boarding switch door: before getting into the cabin, operating personnel stands earlier 1 thousand hands in the door frame and lightly holds in the palm 3 tops of lower door, and another hand draws the outer handle 53 of lower door to the oblique rear and realizes the unblock of lower door 3, retreats about half a meter after the unblock, treats that lower door 3 opens the back completely, steps on stair mechanism 6, goes up to the second step footboard after, draws the outer handle 51 of upper door and opens upper door 2, receives to hold in the palm upper door 2 and to open completely, uses the locking stay cord to lock upper door 2 to the position of opening completely. After entering the cabin, an operator squats down inside to take the pull rope 71 off the lower cabin door 3, the pull rope 71 is pulled out completely and then pulled continuously in the standing process until the lower cabin door 3 is pulled close to be closed completely, then the lower cabin door 3 is locked in place by hands, one end of the pull rope 71 is fixed on the lower cabin door 3, and after the lower cabin door 3 is closed, the operator unlocks the pull rope of the upper cabin door 2 to close the upper cabin door.

Opening and closing the door when the door is off: when in the cabin, an operator pulls the upper cabin door inner handle 52 to unlock the upper cabin door 2, the upper cabin door 2 is pulled upwards to be opened completely, the upper cabin door 2 is locked at a completely opened position by using the locking stay cord, then the lower cabin door inner handle 54 is pulled to unlock the lower cabin door 3, the lower cabin door 3 is pushed outwards slightly to be opened completely under the action of gravity, when the operator walks to the door frame 1, the locking stay cord of the upper cabin door 2 is unfastened firstly, the upper cabin door 2 is supported by one hand, the operator stands on the second-order pedal, the upper cabin door 2 is closed, and after the operator leaves the pedal, the lower cabin door 3 is supported by two hands and the lower cabin door 3 is closed.

Emergency throwing: the suggestion throwing can be realized by rotating the inner throwing handle 411 or the outer throwing handle 412 downwards, the lower hinge 322 is separated from the lower throwing frame 43 through the transmission action of the connecting rod, the hinge and the connecting pieces, the throwing of the lower cabin door 3 is realized, the upper hinge shaft 232 is separated from the upper hinge mounting plate 22 and the upper hinge plate 231, and the upper cabin door 2 can be taken out after falling under the gravity, so that the throwing is realized.

To sum up, the utility model relates to a door ladder unification formula airstairs door, overall structure reasonable in design is ingenious, no matter can all easily conveniently open and close the hatch door in the under-deck or the cabin outside, and stability is high simultaneously, and stable in structure is difficult to take place to damage. In addition, the whole cabin door can be thrown by one key due to the design of the throwing mechanism, and the safety performance is greatly improved. The space is also saved in the design of ladder mechanism, make full use of the structural design of hatch door itself, improved the practicality greatly. The design of damping rod can improve stability, prevents that lower cabin door from taking place to damage.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a door ladder unification formula broadside ladder door which characterized in that: including door frame (1), door (2) and lower door (3) are provided with to door frame (1) internal rotation, the outside of door frame (1) is encircleed and is provided with throwing mechanism (4), throw mechanism (4) with go up door (2) with lower door (3) transmission respectively is connected, go up door (2) with it does not be provided with release mechanism (5) to divide equally on the inside and outside of lower door (3), be provided with ladder mechanism (6) on the inboard of lower door (3), lower door (3) with it is provided with passive supplementary device (7) that receive and releases to go up still the transmission between door frame (1).

2. A ladder-in-one gangway ladder door as claimed in claim 1, wherein: the upper cabin door (2) and the lower cabin door (3) as well as the upper cabin door (2) and the lower cabin door (3) are respectively arranged between the door frame (1) in a sealing way.

3. A ladder-in-one gangway ladder door as claimed in claim 1, wherein: an upper cabin door installation assembly (21) is arranged at the top of the upper cabin door (2), the upper cabin 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 cabin 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 with the upper hinge plate installation plate (23), 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), the rotation direction of the upper hinge plate (231) is vertical to the door frame (1), a lower cabin door installation assembly (31) is arranged at the bottom of the lower cabin door (3), the lower cabin door installation assembly (31) comprises a lower hinge installation plate (32) arranged on the outer side of the lower cabin door (3), the lower hinge mounting plate (32) is rotatably provided with a lower hinge (322) through a lower hinge shaft (321), the rotating 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).

4. A ladder-in-one gangway ladder door as claimed in claim 3, wherein: the throwing mechanism (4) comprises a first rotating shaft (41) positioned on the side surface of the door frame (1), an upper throwing frame (42) and a lower throwing frame (43) which are respectively positioned above and below the door frame (1), two ends of the first rotating shaft (41) are respectively and fixedly connected with an inner throwing handle (411) positioned on the inner side of the door frame (1) and an outer throwing handle (412) positioned 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 arranged at the top of the door frame (1), a first transmission piece (451) and a second transmission piece (452) are coaxially and rotatably arranged on the first mounting plate (45) through rotating shafts, the first transmission piece (451) is fixedly connected with the top of the first transmission plate (44) through a hinge, one end of the second transmission piece (452) is rotatably connected with the first mounting plate (45), the other end of the second transmission member (452) is fixedly connected with the upper throwing frame (42), a second transmission shaft (421) penetrates through the upper throwing 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), the other end of the third transmission member (422) is fixedly connected with the upper hinge shaft (232), 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), the other end of the fourth transmission member (441) is coaxially and rotatably connected with a fifth transmission member (443), one end of the fifth transmission member (443) is rotatably connected with the fourth transmission member (441), and the other end of the fifth transmission member (443) is fixedly connected with the lower throwing frame (43), a sixth transmission piece (444) is connected between the lower throwing frame (43) and the lower hinge (322) in a transmission way.

5. A ladder-in-one gangway ladder door as claimed in claim 4, wherein: the first mounting plate (45), the first transmission piece (451), the second transmission piece (452) and the upper cabin door mounting assembly (21) are respectively provided with two parts which are symmetrically arranged at two ends of the upper throwing frame (42), one of the parts is in transmission connection with the first rotating shaft (41), the other part is in transmission connection with the auxiliary throwing hinge (211) through the upper cabin door mounting assembly (21), and the auxiliary throwing hinge (211) is in transmission connection with the passive auxiliary winding and unwinding device (7) through a seventh transmission piece (445).

6. A ladder-in-one gangway ladder door as claimed in claim 4, wherein: the passive auxiliary retracting device (7) comprises a pull rope (71) and a damping rod (72) which are arranged on the inner side of the door frame (1), one end of the pull rope (71) is fixedly connected with the lower cabin door (3), and the other end of the pull rope (71) is in transmission connection with the damping rod (72) through an air supporting rod pin (73) and the throwing mechanism (4).

7. A ladder-in-one gangway ladder door as claimed in 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 outer handle (53) and a lower cabin door inner handle (54), the upper cabin door outer handle (51) is positioned on the outer side of the door frame (1), the upper cabin door inner handle (52) is positioned on the inner side of the door frame (1), the upper cabin door outer handle (51) and the upper cabin door inner handle (52) are jointly in transmission connection with a left upper transmission rod (511) and a right upper transmission rod (512) which are oppositely arranged, the left upper transmission rod (511) and the right upper transmission rod (512) are oppositely arranged, one end of the left upper transmission rod (511) and the other end of the right upper transmission rod (512) are respectively in movable locking and arranged in the door frame (1), the lower cabin door outer handle (53) is positioned on the outer side of the lower cabin door (3), the lower cabin door inner handle (54) is positioned on the inner side of the lower cabin door (3), one end of the lower cabin door inner handle (54) is rotatably connected with a first connecting rod (541) horizontally arranged through a rotating shaft, one end of the first connecting rod (541) is rotatably connected with the lower cabin door inner handle (54), the other end of the first connecting rod (541) is abutted against and provided with a rotating connecting plate (542), one end of the rotating connecting plate (542) is connected with the first connecting rod (541), the other end of the rotating connecting plate (542) is in transmission connection with a left lower transmission rod (543) and a right lower transmission rod (544), the opposite ends of the left lower transmission rod (543) and the right lower transmission rod (544) are respectively in transmission connection with the rotating connecting plate (542), the opposite ends of the left lower transmission rod (543) and the right lower transmission rod (544) are respectively movably locked and arranged in the door frame (1), a second connecting rod (531) penetrates through the lower cabin door outer handle (53), the second connecting rod (531) is rotatably connected with a third connecting rod (532) through a rotating shaft, and the third connecting rod (532) is in transmission connection with the right lower transmission rod (544).

8. A ladder-in-one gangway ladder door as claimed in claim 7, wherein: 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 top of the lower cabin door (3).