CN218715987U

CN218715987U - Cabin door opening position locking mechanism

Info

Publication number: CN218715987U
Application number: CN202222646058.6U
Authority: CN
Inventors: 刘万春; 韩永志; 魏海洋; 甘亚东; 吴海弟
Original assignee: AVIC First Aircraft Institute
Current assignee: AVIC First Aircraft Institute
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-03-24
Anticipated expiration: 2032-10-09

Abstract

The application belongs to the technical field of cabin door opening position locking mechanical design, concretely relates to cabin door opening position locking mechanical system, include: the rotating shaft is rotatably connected to the cabin door; the handle is connected to the rotating shaft; the latch hook is connected to the rotating shaft; the spring is connected between the cabin door and the latch hook; the support is connected to the cabin door frame; the lock shaft is connected to the support; the hatch door open position locking mechanism includes: in the locking state, when the cabin door is opened from the cabin door frame, the lock hook is driven to approach the lock shaft, so that the hook end of the lock hook is contacted with the lock shaft, the lock hook moves around the lock shaft by overcoming the elastic force of the spring, and after the cabin door reaches the opening position, the lock hook bypasses the lock shaft, hooks the lock shaft under the elastic force of the spring, and keeps the cabin door at the opening position; in an unlocking state, when the cabin door needs to be closed in the cabin door frame, the handle is operated to drive the rotating shaft to rotate, the locking hook overcomes the elastic force of the spring to move, the locking shaft is released by the hook end of the locking hook, and the cabin door can be closed in the cabin door frame.

Description

Cabin door opening position locking mechanism

Technical Field

The application belongs to the technical field of cabin door opening position locking mechanism design, and particularly relates to a cabin door opening position locking mechanism.

Background

After the cabin door on the airplane is opened, the cabin door needs to be reliably locked by a cabin door opening position locking mechanism, so that the cabin door is reliably kept at an opening position, and when the cabin door needs to be closed, the cabin door needs to be unlocked through manual operation, and the locking of the cabin door at the opening position is released.

At present, the locking mechanism at the opening position of the upper cabin door of the airplane mostly adopts a four-bar linkage mechanism, the locking mechanism is arranged on a hinge arm of the cabin door and is limited by space, the coordination relationship of the intersection points of the mechanisms is complex, the assembly is inconvenient, and the problem is particularly prominent when the cabin door is a translational cabin door.

The present application has been made in view of the above-mentioned technical drawbacks.

It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.

Disclosure of Invention

It is an object of the present application to provide a hatch door open position locking mechanism to overcome or alleviate at least one aspect of the technical disadvantages known to exist.

The technical scheme of the application is as follows:

a hatch door open position locking mechanism comprising:

the rotating shaft is rotatably connected to the cabin door;

the handle is connected to the rotating shaft;

the lock hook is connected to the rotating shaft;

the spring is connected between the cabin door and the latch hook;

the support is connected to the cabin door frame;

the lock shaft is connected to the support;

the hatch door open position locking mechanism includes:

in the locking state, when the cabin door is opened from the cabin door frame, the lock hook is driven to approach the lock shaft, so that the hook end of the lock hook is contacted with the lock shaft, the lock hook moves around the lock shaft by overcoming the elastic force of the spring, and after the cabin door reaches the opening position, the lock hook bypasses the lock shaft, hooks the lock shaft under the elastic force of the spring, and keeps the cabin door at the opening position;

in an unlocking state, when the cabin door needs to be closed in the cabin door frame, the handle is operated to drive the rotating shaft to rotate, the locking hook overcomes the elastic force of the spring to move, the locking shaft is released by the hook end of the locking hook, and the cabin door can be closed in the cabin door frame.

According to at least one embodiment of the present application, in the above-mentioned locking mechanism for an open position of a cabin door, the spring is a torsion spring, and is sleeved on the rotating shaft.

According to at least one embodiment of the present application, in the above-mentioned locking mechanism for an open position of a cabin door, the support is a binaural supporting structure;

the lock shaft is arranged in the through hole of the lug of the double-lug supporting structure.

According to at least one embodiment of the present application, in the above-mentioned locking mechanism for an open position of a cabin door, a cabin door limiting hole is formed on the cabin door;

the limiting protrusion is arranged on the lock hook, and a lock hook limiting hole is formed in the limiting protrusion;

the hatch door open position locking mechanism further includes:

and the limiting bolt is arranged in the cabin door limiting hole and the lock hook limiting hole, is matched with the nut, and generates a reverse acting force for balancing the elastic force of the spring on the lock hook.

Drawings

FIG. 1 is a schematic view of a hatch door open position locking mechanism provided by an embodiment of the present application in a locked state;

FIG. 2 is a schematic view of a hatch door open position locking mechanism provided by an embodiment of the present application in an unlocked state;

wherein:

1-a rotating shaft; 2-a cabin door; 3-a handle; 4-a latch hook; 5-a spring; 6-support; 7-a cabin door frame; 8-locking the shaft; 9-limit bolt.

For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; furthermore, the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, and other related parts may refer to general designs, and in case of conflict, the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment.

In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.

Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.

The present application is described in further detail below with reference to fig. 1-2.

A hatch door open position locking mechanism comprising:

the rotating shaft 1 is rotatably connected to the cabin door 2, and can be connected to a translation cabin door hinge arm on an airplane specifically;

the handle 3 is connected to the rotating shaft 1;

the lock hook 4 is connected to the rotating shaft 1;

the spring 5 is connected between the cabin door 2 and the latch hook 4;

the support 6 is connected to the cabin door frame 7 and can be a door frame which is connected to the airplane and corresponds to the translation cabin door;

the lock shaft 8 is connected to the support 6;

the hatch door open position locking mechanism includes:

in the locking state, when the cabin door 2 is opened from the cabin door frame 7, the locking hook 4 is driven to approach the locking shaft 8, so that the hook end of the locking hook 4 is contacted with the locking shaft 8, the locking hook 4 moves around the locking shaft 8 by overcoming the elastic force of the spring 5, and after the cabin door 2 reaches the opening position, the locking hook 4 winds around the locking shaft 8, hooks the locking shaft 8 under the elastic force of the spring 5, and keeps the cabin door 2 at the opening position, as shown in fig. 1;

in an unlocking state, when the cabin door 2 needs to be closed in the cabin door frame 7, the handle 3 is operated to drive the rotating shaft 1 to rotate, so that the locking hook 4 moves against the elastic force of the spring 5, the hook end of the locking hook 4 releases the locking shaft 8, and the cabin door 2 can be closed in the cabin door frame 7, as shown in fig. 2.

As for the locking mechanism for the open position of the cabin door disclosed in the above embodiment, it can be understood by those skilled in the art that the locking mechanism for the open position of the cabin door may only include the rotating shaft 1, the handle 3, the latch hook 4, the spring 5, the support 6, and the latch shaft 8, and the overall structure is compact, after the cabin door 2 reaches the open position, the cabin door 2 is kept at the open position by the elastic force of the spring 5, when the cabin door 2 needs to be closed in the cabin door frame 7, the handle 3 is operated to drive the rotating shaft 1 to rotate, so that the latch hook 4 overcomes the elastic force of the spring 5, and the latch shaft 8 is released by the hook end of the latch hook 4.

In some optional embodiments, in the above-mentioned locking mechanism for the open position of the cabin door, the spring 5 is a torsion spring, and is sleeved on the rotating shaft 1, so that the overall structure is compact.

In some alternative embodiments, in the above-mentioned locking mechanism for the open position of the hatch, the support 6 is a binaural supporting structure;

the locking shaft 8 is arranged in a through hole of the lug of the double-lug supporting structure.

In some optional embodiments, in the above-mentioned door opening position locking mechanism, the door 2 has a door spacing hole;

the upper limiting protrusion of the lock hook 4 is provided with a lock hook limiting hole;

the hatch door open position locking mechanism further includes:

the limiting bolt 9 is arranged in the cabin door limiting hole and the lock hook limiting hole and is matched with the nut, the lock hook 4 generates a reverse acting force of the elastic force of the balance spring 5, the limiting bolt 9 and the nut thereof can be relatively screwed to adjust the effective length of the limiting bolt 9, and further the angle of the lock hook 4 is adjusted, so that the cabin door opening position locking mechanism can be conveniently switched between a locking state and an unlocking state.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.

Claims

1. A hatch door open position locking mechanism, comprising:

the rotating shaft (1) is rotatably connected to the cabin door (2);

the handle (3) is connected to the rotating shaft (1);

the lock hook (4) is connected to the rotating shaft (1);

the spring (5) is connected between the cabin door (2) and the locking hook (4);

the support (6) is connected to the cabin door frame (7);

the lock shaft (8) is connected to the support (6);

the hatch door open position locking mechanism has:

in a locking state, when the cabin door (2) is opened from the cabin door frame (7), the locking hook (4) is driven to approach the locking shaft (8), so that the hook end of the locking hook (4) is contacted with the locking shaft (8), the locking hook (4) moves around the locking shaft (8) by overcoming the elastic force of the spring (5), and after the cabin door (2) reaches an opened position, the locking hook (4) bypasses the locking shaft (8), hooks the locking shaft (8) under the elastic force of the spring (5), and keeps the cabin door (2) at the opened position;

the locking mechanism comprises an unlocking state, wherein when the cabin door (2) needs to be closed in the cabin door frame (7), the handle (3) is operated to drive the rotating shaft (1) to rotate, so that the locking hook (4) overcomes the elastic force of the spring (5) to move, the hook end of the locking hook (4) releases the locking shaft (8), and the cabin door (2) can be closed in the cabin door frame (7).

2. The hatch door open position locking mechanism according to claim 1,

the spring (5) is a torsion spring and is sleeved on the rotating shaft (1).

3. The hatch door open position locking mechanism according to claim 1,

the support (6) is of a double-lug supporting structure;

the lock shaft (8) is arranged in a through hole of the lug of the double-lug supporting structure.

4. The hatch door open position locking mechanism according to claim 1,

the cabin door (2) is provided with a cabin door limiting hole;

the lock hook (4) is provided with a limiting protrusion, and the limiting protrusion is provided with a lock hook limiting hole;

the hatch door open position locking mechanism further includes:

and the limiting bolt (9) is arranged in the cabin door limiting hole and the lock hook limiting hole and is matched with the nut, and the lock hook (4) generates a reverse acting force for balancing the elastic force of the spring (5).