CN220451641U - Hinge, cabin door assembly and aircraft - Google Patents

Abstract

The utility model provides a hinge, a cabin door assembly and an aircraft. The hinge comprises a first connecting piece, a second connecting piece and a sliding component, wherein the first connecting piece is provided with a first arc-shaped groove extending around a first direction, the second connecting piece is provided with a second arc-shaped groove extending around the first direction, the sliding component comprises a body, a first sliding block and a second sliding block, the first sliding block is arranged on one side of the body in the first direction, the first sliding block is matched in the first arc-shaped groove and can slide relatively with the first connecting piece along the first arc-shaped groove, the second sliding block is arranged on the other side of the body in the first direction, and the second sliding block is matched in the second arc-shaped groove and can slide relatively with the second connecting piece along the second arc-shaped groove. The hinge can be arranged between the machine body and the cabin door body, so that the rotation angle of the cabin door body relative to the machine body is larger than 90 degrees, and the cabin door body is prevented from blocking goods to pass through the hatch.

Description

Hinge, cabin door assembly and aircraft

Technical Field

The utility model relates to the technical field of aircrafts, in particular to a hinge, a cabin door assembly and an aircraft.

Background

The nose refers to the tip end part of the foremost end of the aircraft, and part of the aircraft is provided with the nose as a cabin door so as to facilitate the goods to enter and leave the cargo compartment of the aircraft, and the cabin door formed by the nose is called a nose cabin door. In the related art, a fuselage and a nose cabin door are connected through a foldable two-bar linkage similar to a hinge so that the nose cabin door can be opened and closed. However, the movement angle of the nose cabin door is limited to 90 degrees by the foldable two-bar linkage mechanism, and the swing or the movement of the nose cabin door under external force can cause the hatch to be smaller, so that the risk of collision with the nose cabin door exists when goods enter or exit the cargo warehouse.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, embodiments of the present utility model provide a hinge that can be disposed between a fuselage and a hatch body such that the rotation angle of the hatch body relative to the fuselage is greater than 90 ° to avoid the hatch body obstructing the passage of cargo through the hatch.

Embodiments of the present utility model also provide a door assembly.

The embodiment of the utility model also provides an aircraft.

The hinge of the embodiment of the utility model comprises:

a first connecting member provided with a first arc-shaped groove extending around a first direction;

the second connecting piece is provided with a second arc-shaped groove extending around the first direction;

the sliding assembly comprises a body, a first sliding block and a second sliding block, wherein the first sliding block is arranged on one side of the body in the first direction, the first sliding block is matched in the first arc-shaped groove and can slide relatively along the first arc-shaped groove with the first connecting piece, the second sliding block is arranged on the other side of the body in the first direction, and the second sliding block is matched in the second arc-shaped groove and can slide relatively along the second arc-shaped groove with the second connecting piece.

The hinge provided by the embodiment of the utility model is characterized in that the sliding component is connected between the first connecting piece and the second connecting piece, the sliding component and the first connecting piece can slide relatively, and meanwhile, the sliding component and the second connecting piece can slide relatively, so that the rotation angle of the hinge is larger than 90 degrees, and when the hinge is arranged between the machine body and the cabin door body, the rotation angle of the cabin door body relative to the machine body is larger than 90 degrees, and the cabin door body is prevented from obstructing goods to pass through the hatch.

In some embodiments, the body is arc-shaped extending around the first direction, the first slider is disposed at one end of the body in the extending direction, and the second slider is disposed at the other end of the body in the extending direction.

In some embodiments, the body has a first chute at one side of the first direction, the first chute is arc-shaped extending around the first direction, the first slider is arranged in the first chute, at least part of the first connecting piece is embedded in the first chute and can slide along the first chute relatively with the body,

the body is provided with a second chute at the other side of the first direction, the second chute is arc-shaped extending around the first direction, the second sliding block is arranged in the second chute, and at least part of the second connecting piece is embedded in the second chute and can slide relative to the body along the second chute.

In some embodiments, the body comprises:

a first member having the first slider provided at one side of the first member in the first direction and a connection groove having an arc shape extending around the first direction;

the second component is positioned on the other side of the first component in the first direction, a third sliding block is arranged on one side of the second component, which is adjacent to the first component in the first direction, and is matched in the connecting groove and can slide along the connecting groove relative to the first component, and the second component is provided with the second sliding block on one side, which is far away from the first component, in the first direction.

In some embodiments, at least one of the first and second connectors includes a base plate provided with the first or second arc-shaped grooves, and an extension plate provided on the base plate and extending in a direction away from the body in the first direction.

In some embodiments, the substrate is an arc extending around the first direction, the extension board includes a straight portion and an arc portion sequentially connected from one end of the substrate in the extending direction toward the other end of the substrate, the arc portion is disposed inside the arc of the substrate, the straight portion is disposed at one end of the substrate in the extending direction, and the straight portion is used for mounting connection.

The cabin door assembly of the embodiment of the utility model comprises:

the cabin door body is used for opening and closing a cabin opening of the machine body;

the hinge is any one of the above embodiments, wherein the first connecting piece is provided on the cabin door body, and the second connecting piece is used for connecting the machine body.

The cabin door assembly provided by the embodiment of the utility model is provided with the hinge, so that the rotation angle of the cabin door body relative to the machine body is larger than 90 degrees through the hinge, and the cabin door body is prevented from obstructing goods to pass through the hatch.

In some embodiments, the door body is rotatable relative to the fuselage between an open position in which the door body opens the hatch, and a closed position in which the door body closes the hatch,

the hatch assembly further includes a booster device coupled to the hatch body and the fuselage for maintaining the hatch body in an open position when the hatch is open and in a closed position when the hatch body is closed.

In some embodiments, the door body has a recessed space, the inner wall surface of the door body has a door abutment located within the recessed space,

The body having a body mount which, in the closed position, extends from the body into the recessed space,

the power assisting device is a gas spring, a first end of the power assisting device is hinged with the cabin door support, a second end of the power assisting device is hinged with the machine body support, and in the closing position, the first end of the power assisting device is far away from the inner wall surface of the cabin door body compared with the second end of the power assisting device.

In some embodiments, the door body includes the door support, a door bulkhead, and a door skin disposed outside of the door bulkhead, the door support and the first connector being disposed inside of the door bulkhead, and the door support being located on a side of the first connector that is distal from an edge of the door body; and/or

The fuselage includes fuselage bulkhead, fuselage skin and the fuselage support, the fuselage skin is established the outside of fuselage bulkhead, the fuselage support with the second connecting piece is established the inboard of fuselage bulkhead.

The aircraft of the embodiment of the utility model comprises a fuselage and a nose cabin door, wherein the nose cabin door is the cabin door assembly of any embodiment.

The nose cabin door of the airplane provided by the embodiment of the utility model is the cabin door assembly provided by the embodiment of the utility model, so that the nose cabin door can be prevented from blocking goods to pass through the hatch.

In some embodiments, the aircraft further comprises a door lock, the hinge being connected between the top of the fuselage and the top of the door body, the bottom of the door body having a recess, the bottom of the fuselage having a projection that mates with the recess, the door lock being used to lock the projection with the edge of the door body that forms the recess.

Drawings

FIG. 1 is a schematic view of a hinge according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a hinge according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a portion of an aircraft structure according to an embodiment of the utility model;

FIG. 4 is an enlarged schematic view of a portion of the structure of the aircraft of FIG. 3;

FIG. 5 is a schematic view of the structure of the pod door body of FIG. 3;

FIG. 6 is a schematic view of the door lock of FIG. 3;

FIG. 7 is a schematic view of a closed position in an embodiment of the utility model;

fig. 8 is a schematic view of an open position in an embodiment of the present utility model.

Reference numerals:

10. a hinge; 1. a first connector; 11. a first arc-shaped groove; 2. a second connector; 21. a second arc-shaped groove; 3. a sliding assembly; 31. a body; 32. a first slider; 33. a second slider; 34. a first chute; 35. a second chute; 4. a substrate; 5. an extension plate; 51. a straight portion; 52. an arc-shaped portion;

20. A cabin door body; 201. a cabin door support; 202. cabin door spacer; 203. cabin door skin; 204. a push-pull part; 30. a body; 301. a fuselage support; 302. a protruding portion; 40. a booster device; 50. and (5) a cabin door lock.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A hinge, door assembly and aircraft according to an embodiment of the utility model are described below with reference to fig. 1-8.

As shown in fig. 1 to 2, the hinge of the embodiment of the present utility model includes a first link 1, a second link 2, and a sliding assembly 3.

The first connector 1 is provided with a first arc-shaped groove 11 extending around a first direction (left-right direction as shown in fig. 1). The second connecting member 2 is provided with a second arc-shaped groove 21 extending around the first direction. The sliding assembly 3 includes a body 31, a first slider 32 and a second slider 33, the first slider 32 is disposed at one side of the body 31 in the first direction, the first slider 32 is fitted in the first arc-shaped slot 11 and can slide relatively with the first connecting piece 1 along the first arc-shaped slot 11, the second slider 33 is disposed at the other side of the body 31 in the first direction, and the second slider 33 is fitted in the second arc-shaped slot 21 and can slide relatively with the second connecting piece 2 along the second arc-shaped slot 21.

Specifically, as shown in fig. 1 and 2, two hinges are respectively arranged in the left-right direction in fig. 1 and 2, and the two hinges are structurally symmetrical in the left-right direction, the hinge on the left side comprises a first connecting piece 1, a sliding component 3 and a second connecting piece 2 which are sequentially connected from left to right, and the hinge on the right side comprises a second connecting piece 2, a sliding component 3 and a first connecting piece 1 which are sequentially connected from left to right.

The first connector 1 is provided with a first arc-shaped groove 11 extending around the left-right direction, and preferably the first arc-shaped groove 11 penetrates the first connector 1 in the left-right direction. The second connecting member 2 is provided with a second arc-shaped groove 21 extending around the left-right direction, and preferably, the second arc-shaped groove 21 penetrates the second connecting member 2 in the left-right direction.

The body 31 is provided with a first slider 32 on one side facing the first connecting piece 1 in the left-right direction, the first slider 32 is slidably embedded in the first arc-shaped groove 11 so that the sliding component 3 and the first connecting piece 1 can slide relatively along the extending direction of the first arc-shaped groove 11, the body 31 is provided with a second slider 33 on one side facing the second connecting piece 2 in the left-right direction, and the second slider 33 is slidably embedded in the second arc-shaped groove 21 so that the sliding component 3 and the second connecting piece 2 can slide relatively along the extending direction of the second arc-shaped groove 21. The first arc-shaped groove 11 and the second arc-shaped groove 21 are coaxially arranged.

So that the hinge has a maximum rotation position shown in fig. 1, in which the first link 1, the sliding assembly 3 and the second link 2 are sequentially connected around the left-right direction, and a minimum rotation position shown in fig. 2, in which the first link 1, the sliding assembly 3 and the second link 2 are overlapped in the left-right direction.

Preferably, the first slider 32 is cylindrical to fit the first arc-shaped groove 11, and the second slider 33 is cylindrical to fit the second arc-shaped groove 21.

The hinge provided by the embodiment of the utility model is characterized in that the sliding component is connected between the first connecting piece and the second connecting piece, the sliding component and the first connecting piece can slide relatively, and meanwhile, the sliding component and the second connecting piece can slide relatively, so that the rotation angle of the hinge is larger than 90 degrees, and when the hinge is arranged between the machine body and the cabin door body, the rotation angle of the cabin door body relative to the machine body is larger than 90 degrees, and the cabin door body is prevented from obstructing goods to pass through the hatch.

In some embodiments, the body 31 is arc-shaped extending around the first direction, the first slider 32 is provided at one end of the body 31 in the extending direction, and the second slider 33 is provided at the other end of the body 31 in the extending direction.

As shown in fig. 1, the body 31 is arc-shaped extending around a first direction, in the hinge located at the left side in fig. 1, the lower end of the body 31 is provided with a first slider 32, the first connector 1 extends rearward from the lower end of the body 31, the upper end of the body 31 is provided with a second slider 33, the upper end of the body 31 of the second connector 2 extends rearward, in the hinge located at the right side in fig. 1, the upper end of the body 31 is provided with a first slider 32, the first connector 1 extends rearward from the upper end of the body 31, the lower end of the body 31 is provided with a second slider 33, and the lower end of the body 31 of the second connector 2 extends rearward. In other words, in the maximum rotation position, the first link 1, the sliding assembly 3 and the second link 2 are sequentially connected around the left-right direction, one end of the sliding assembly 3 facing the first link 1 is provided with the first slider 32, and one end of the sliding assembly 3 facing the second link 2 is provided with the second slider 33, so that the first link 1, the sliding assembly 3 and the second link 2 extend a longer distance around the left-right direction, resulting in a hinge having a larger rotation angle.

It will be appreciated that the first slider and the second slider are not limited to being disposed at both ends of the extending direction of the body, and in other embodiments, the first slider and the second slider may be disposed at positions on the body according to a maximum rotation angle required by the hinge, for example, the first slider and the second slider are disposed opposite each other in the left-right direction, in other words, in a projection plane orthogonal to the left-right direction, the projection of the first slider and the projection of the second slider overlap.

In some embodiments, the body 31 has a first sliding groove 34 on one side in the first direction, the first sliding groove 34 is arc-shaped and extends around the first direction, the first sliding block 32 is arranged in the first sliding groove 34, at least part of the first connecting piece 1 is embedded in the first sliding groove 34 and can slide along the first sliding groove 34 relative to the body 31, the other side of the body 31 in the first direction has a second sliding groove 35, the second sliding groove 35 is arc-shaped and extends around the first direction, the second sliding block 33 is arranged in the second sliding groove 35, and at least part of the second connecting piece 2 is embedded in the second sliding groove 35 and can slide along the second sliding groove 35 relative to the body 31.

As shown in fig. 1, in the hinge located at the left side, the left end face of the body 31 has a first chute 34, specifically, two bosses are disposed on the left end face of the body 31, the bosses are arc-shaped extending around the left-right direction, one boss is disposed at the inner side of the arc of the body 31, the other boss is disposed at the outer side of the arc of the body 31, and the first chute 34 is formed between the two bosses. The first slider 32 is provided on the groove bottom surface of the first slide groove 34. The right end of the first connecting piece 1 is embedded in the first sliding groove 34, and the first sliding block 32 is embedded in the first arc-shaped groove 11, and the first connecting piece 1 and the body 31 can slide along the first sliding groove 34 relatively, in other words, the first connecting piece 1 can slide along the extending direction of the first sliding groove 34 in the first sliding groove 34.

In the hinge located on the right side, the left end face of the body 31 is provided with a second chute 35, specifically, two bosses are also arranged on the left end face of the body 31, and the second chute 35 is formed between the two bosses. The second slider 33 is provided on the groove bottom surface of the second slide groove 35. The right end of the second connecting piece 2 is embedded in the second sliding groove 35, and the second sliding block 33 is embedded in the second arc-shaped groove 21, so that the second connecting piece 2 and the body 31 can slide along the second sliding groove 35 relatively, in other words, the second connecting piece 2 can slide along the extending direction of the second sliding groove 35 in the second sliding groove 35.

Similarly, the right end face of the left hinge is provided with a second chute 35, and the right end face of the right hinge is provided with a first chute 34.

The first sliding groove and the second sliding groove are arranged to limit the sliding direction of the corresponding first connecting piece and second connecting piece, so that the first connecting piece and the second connecting piece can slide smoothly, the boss forming the first sliding groove and the second sliding groove also plays a role in bearing the corresponding first connecting piece and second connecting piece, and the first sliding block and the second sliding block are prevented from being damaged due to larger pressure.

It will be appreciated that the structure of the body is not limited to that shown in fig. 1, and in other embodiments the body may not have the first and second runners.

In some embodiments, the body 31 includes a first member and a second member. The first member has a first slider 32 provided at one side of the first member in the first direction, and a connection groove having an arc shape extending around the first direction. The second member is located at the other side of the first member in the first direction, one side of the second member adjacent to the first member in the first direction is provided with a third sliding block, the third sliding block is matched in the connecting groove and can slide along the connecting groove relative to the first member, and one side of the second member far away from the first member in the first direction is provided with a second sliding block 33.

Specifically, the body 31 includes two members, i.e., a first member and a second member, each of which is arc-shaped extending around the left-right direction, the first member and the second member are sequentially arranged in the left-right direction, the first member is connected between the first connector 1 and the second member, and the second member is connected between the second connector 2 and the first member.

The first member has a first slider 32 and a connecting groove, the first slider 32 being located on a side of the first member facing the first connecting piece 1, in other words, on a side of the first member facing away from the second member, so that the first slider 32 can be embedded in the first arc-shaped groove 11. The connecting groove is the arc that extends around the left and right directions, and connecting groove, first arc wall 11 and the coaxial setting of second arc wall 21, and the connecting groove can run through first component along the left and right directions, and first slider 32 and connecting groove set gradually in the direction around the left and right directions this moment, and the connecting groove also can not run through first component, and at this moment in the projection plane of quadrature left and right directions, the projection of first slider 32 overlaps with the projection of connecting groove.

The second member has a third slider on a side facing the first member, in other words, on a side of the second member facing away from the second connector 2, the third slider is slidably embedded in the connecting groove, so that the second member and the first member can slide relatively along the extending direction of the connecting groove, and the third slider is preferably cylindrical and is adapted to the connecting groove.

The side of the second member facing the second connection piece 2 has a second slider 33, in other words, the side of the second member facing the second connection piece 2 has a second slider 33, the second slider 33 being embedded in the second arc-shaped groove 21.

The second slider 33 is located at one end of the second member extending direction, the third slider is located at the other end of the second member extending direction, and the first slider 32 is located at the other end of the first member extending direction. In other words, in the maximum rotation position, the second link 2, the second member, the first member, and the first link 1 are sequentially connected around the left-right direction, at which time the second slider 33 is located at an end of the second member toward the second link 2, the third slider is located at an end of the second member away from the second link 2, in other words, the third slider is located at an end of the second member toward the first member, and the first slider 32 is located at an end of the first member toward the first link 1.

The body 31 includes the first and second members, which can further increase the extension distances of the first link 1, the slide assembly 3, and the second link 2 in the direction around the left-right direction, enabling the hinge to have a larger rotation angle.

In some embodiments, at least one of the first connector 1 and the second connector 2 includes a base plate 4 and an extension plate 5, the base plate 4 is provided with a first arc-shaped groove 11 or a second arc-shaped groove 21, the extension plate 5 is provided on the base plate 4, and the extension plate 5 extends in a direction away from the body 31 in a first direction.

As shown in fig. 1 and 2, the first connector 1 and the second connector 2 each include a base plate 4 and an extension plate 5, the base plate 4 is arc-shaped extending around the left-right direction, the base plate 4 of the first connector 1 is provided with a first arc-shaped groove 11, and the base plate 4 of the second connector 2 is provided with a second arc-shaped groove 21.

The extension plate 5 is provided on the base plate 4 and extends from the base plate 4 in a direction away from the body 31 in the left-right direction, as shown in fig. 2, in the left-side hinge, the extension plate 5 of the first link 1 extends leftward, the extension plate 5 of the second link 2 extends rightward, and in the right-side hinge, the extension plate 5 of the first link 1 extends rightward, and the extension plate 5 of the second link 2 extends leftward to avoid interference.

The extending plate 5 plays a role of supporting the substrate 4, the strength of the substrate 4 is improved, bending and deformation of the substrate 4 along the left-right direction are avoided, and smooth sliding of the first connecting piece 1, the second connecting piece 2 and the sliding component 3 is ensured.

It will be appreciated that the structure of the first and second connectors is not limited to that shown in fig. 2, and in other embodiments, the first and second connectors do not have extension plates, and the strength of the substrate is ensured by the material of the substrate and the thickness in the left-right direction.

In some embodiments, the substrate 4 is arc-shaped extending around the first direction, the extension board 5 includes a straight portion 51 and an arc-shaped portion 52 sequentially connected from one end in the extending direction of the substrate 4 toward the other end of the substrate 4, the arc-shaped portion 52 is provided inside the arc of the substrate 4, the straight portion 51 is provided at one end in the extending direction of the substrate 4, and the straight portion 51 is used for mounting connection.

As shown in fig. 1 and 2, the substrate 4 is arc-shaped extending around the left-right direction, and the extension plate 5 includes a straight portion 51 and an arc-shaped portion 52 that are sequentially connected from one end to the other end of the substrate 4 in the extending direction of the substrate 4, in other words, one end of the substrate 4 in the extending direction is provided with the straight portion 51, one end of the arc-shaped portion 52 is connected to the straight portion 51, and the arc-shaped portion 52 extends from the straight portion 51 to the other end of the substrate 4 in the extending direction. The arc-shaped portion 52 is arc-shaped extending around the left-right direction, and the arc-shaped portion 52 is provided inside the arc shape of the substrate 4.

The arc-shaped portion 52 plays a role of supporting the substrate 4, and the flat portion 51 plays a role of mounting connection, in other words, the first connector 1 and the second connector 2 are mounted and connected through the corresponding flat portion 51, and the mounting connection may be performed by welding the flat portion 51 or by penetrating a connector such as a bolt on the flat portion 51.

It will be appreciated that the arcuate portions are not limited to being provided on the arcuate inner side of the base plate, and in other embodiments, the arcuate portions are provided on the arcuate outer side of the base plate.

As shown in fig. 1-8, the door assembly of the present embodiment includes a door body 20 and a hinge 10.

The hatch body 20 is used to open and close the hatch of the fuselage 30. The hinge 10 is a hinge according to an embodiment of the present utility model, and the first connector 1 is provided on the door body 20, and the second connector 2 is used for connecting to the fuselage 30.

Specifically, as shown in fig. 3, the body 30 is provided with a hatch communicating with the interior cabin, the door body 20 is connected to the body 30 by the hinge 10, and specifically, the flat portion 51 of the first link 1 is connected to the door body 20, and the flat portion 51 of the second link 2 is connected to the body 30 so that the door body 20 can rotate with respect to the body 30 about the axis of the hinge 10 for opening and closing the hatch. Preferably, the hinges 10 are provided in at least two, and at least two hinges 10 are coaxially provided to ensure the stability of the rotation of the door body 20.

The cabin door assembly provided by the embodiment of the utility model is provided with the hinge, the cabin door body is connected with the machine body through the hinge, so that the cabin door body can rotate relative to the machine body to open and close the machine hatch, the rotation angle of the cabin door body relative to the machine body is larger than 90 degrees, and the rotation angle can reach 180 degrees at maximum, so that the cabin door body can be prevented from obstructing goods to pass through the hatch.

It will be appreciated that the door body is not limited to the nose illustrated in fig. 3, and in other embodiments the door body is an arcuate plate disposed on the side of the fuselage.

In some embodiments, the door body 20 is rotatable relative to the fuselage 30 between an open position in which the door body 20 opens the hatch and a closed position in which the door body 20 closes the hatch, the door assembly further comprising a booster device 40, the booster device 40 being associated with the door body 20 and the fuselage 30 for maintaining the door body 20 in the open position when the door body 20 opens the hatch and in the closed position when the door body 20 is closed.

As shown in fig. 3, 4, 7 and 8, the front end of the body 30 is provided with a hatch, the hinge 10 is provided at the upper end of the hatch and connects the body 30 with the door body 20, one end of the booster 40 is hinged with the door body 20, and the other end of the booster 40 is hinged with the body 30. Preferably, the number of hinges 10 is two, the two hinges 10 are arranged at intervals in the left-right direction, and the projection of the booster device 40 is positioned between the projections of the two hinges 10 in the projection plane orthogonal to the up-down direction, so that the cabin door body 20 can rotate stably. Preferably, the booster 40 is a gas spring.

As shown in fig. 7, in the closed position, the main body 30 and the door body 20 are sequentially arranged in the front-rear direction, the door body 20 closes the hatch at the front end of the main body 30, the door body 20 needs to be subjected to a moment in the counterclockwise direction to separate from the closed position and move toward the open position, the booster 40 applies a forward and downward inclined thrust to the door body 20, the booster 40 is integrally located at the front side of the axis of the hinge 10 and at the same time located at the lower side of the axis of the hinge 10, so that the door body 20 is kept in the closed position by the thrust of the booster 40, and the door body 20 needs to be subjected to a large external force to separate from the closed position.

As shown in fig. 8, in the open position, the main body 30 and the door body 20 are sequentially arranged in the up-down direction, the door body 20 opens the hatch at the front end of the main body 30, the door body 20 needs to be subjected to a clockwise moment to be separated from the open position and move to the closed position, the booster device 40 applies a backward and obliquely upward thrust to the door body 20, one end of the booster device 40 is located at the rear side of the axis of the hinge 10 and at the same time is located at the upper side of the axis of the hinge 10, the other end of the booster device 40 is located at the front side of the axis of the hinge 10 and at the same time is located at the lower side of the axis of the hinge 10, so that the door body 20 is kept at the open position by the thrust of the booster device 40, and the door body 20 needs to be subjected to a larger external force to be separated from the open position.

The cabin door body can be kept at the closed position and the open position through the power assisting device, so that the cabin door body is prevented from being opened by unexpected force when in the closed position, and the cabin door body is prevented from being closed by unexpected force when in the open position. Meanwhile, when the cabin door body moves from the closed position to the open position and is adjacent to the open position, the power assisting device can assist in pushing the cabin door body to move to the open position, when the cabin door body moves from the open position to the closed position and is adjacent to the closed position, the power assisting device can assist in pushing the cabin door body to move to the closed position, so that the force for driving the cabin door body to rotate is saved, and the operating force of operators can be saved when the cabin door body rotates by manpower.

It will be appreciated that the door body is not limited to rotation about a left-right direction, in other words, the door body is not limited to flipping in an up-down direction to rotate between a closed position and an open position. In other embodiments, the hinge has an axial direction that is up and down, and the door body rotates about the up and down direction between the closed position and the open position, in other words, the door body is flipped in the left and right direction.

It will be appreciated that the booster is not limited to a gas spring, and in other embodiments the booster may be an electrically powered telescopic rod.

In some embodiments, the door body 20 has a recessed space, the interior wall of the door body 20 has a door seat 201 located within the recessed space, the fuselage 30 has a fuselage seat 301, the fuselage seat 301 extends from the fuselage 30 into the recessed space in the closed position, the booster 40 is a gas spring, a first end of the booster 40 is hinged to the door seat 201, a second end of the booster 40 is hinged to the fuselage seat 301, and in the closed position the first end of the booster 40 is further from the interior wall of the door body 20 than the second end of the booster 40.

As shown in fig. 3, 4, 7 and 8, the cabin door body 20 has a concave space, and when the cabin door body 20 is a nose, the concave space is an inner cavity of the nose, and when the cabin door body 20 is an arc plate body arranged at the side of the fuselage 30, the concave space is a groove space formed by encircling the arc plate. In the closed position, the recessed space communicates with the cabin, and the wall surface of the cabin door body 20 facing the cabin is an inner wall surface, in other words, the wall surface of the cabin door body 20 forming the recessed space is an inner wall surface, and the inner wall surface is provided with a cabin door support 201 located in the recessed space, which means that the cabin door support does not extend beyond the edge of the cabin door body 20.

The body 30 has a body mount 301, the body mount 301 extending forward from the body 30 and extending beyond the hatch, and in the closed position the body mount 301 extends from the body 30 into the recessed space to avoid interference of the booster 40 with the body 30 in the open position, preferably the body mount 301 is arranged in a downwardly convex arc to avoid interference.

The booster 40 is preferably a gas spring, the booster 40 has a first end and a second end disposed opposite to each other in the extending direction thereof, the first end of the booster 40 is hinged with the door holder 201, the second end of the booster 40 is hinged with the body holder 301, in the closed position, the first end of the booster 40 is farther away from the inner wall surface of the door body 20 than the second end of the booster 40, in other words, in the vertical projection plane, the first end of the booster 40 is located on the side of the second end of the booster 40 toward the cabin center line, and when the door holder 201 is disposed on the upper end of the door body 20 and the body holder 301 is disposed on the upper end of the body 30, the first end of the booster 40 is located below the second end of the booster 40, so that the booster 40 applies a forward and obliquely downward thrust to the door body 20 in the closed position and a rearward and obliquely upward thrust to the door body 20 in the open position. Preferably, the hatch support 201 has a dimension in the vertical direction that is greater than the dimension of the fuselage support 301 in the vertical direction.

In some embodiments, the door body 20 comprises a door support 201, a door spacer 202 and a door skin 203, the door skin 203 being provided on the outside of the door spacer 202, the door support 201 and the first connection 1 being provided on the inside of the door spacer 202, and the door support 201 being located on the side of the first connection 1 remote from the edge of the door body 20. And/or the fuselage 30 comprises a fuselage spacer, a fuselage skin and a fuselage support 301, the fuselage skin being arranged on the outside of the fuselage spacer, the fuselage support 301 and the second connection element 2 being arranged on the inside of the fuselage spacer.

As shown in fig. 3 to 5, the hatch body 20 includes a hatch support 201, a hatch frame 202 and a hatch skin 203, the hatch frame 202 plays a role of support and stress, and a part of the hatch frame 202 surrounds a circle along the edge of the hatch body 20 to avoid deformation of the hatch body 20 to fail to open and close the hatch.

The portion of the door frame 202 surrounding the edge of the door body 20 is provided with two first mounting grooves, and the straight portion 51 of the first connector 1 is embedded in the corresponding first mounting groove and connected to the door frame 202 to mount the first connector 1 of the hinge 10 on the door body 20.

The door frame 202 has a bracket extending from a portion around the edge of the door body 20 in a direction away from the edge of the door body 20, in other words, the bracket extends from a portion of the door frame 202 around the edge of the door body 20 in a direction away from the hatch, and the connection position of the bracket and the portion of the door frame 202 around the edge of the door body 20 is located between the two first mounting grooves. The bracket is provided with a mounting seat, which is preferably rectangular, and the hatch support 201 is arranged on the mounting seat. The wall thickness of the hatch door bulkhead 202 is thickened at the first mounting groove and the mounting seat to enhance strength.

A door skin 203 is provided on the outside of the door frame 202.

The fuselage 30 comprises a fuselage bulkhead, a fuselage skin and a fuselage support 301, the fuselage skin is arranged on the outer side of the fuselage bulkhead, a part of the fuselage bulkhead surrounds a circle along the hatch, two second mounting grooves are formed in the part of the fuselage bulkhead surrounding the hatch, the straight parts 51 of the second connecting pieces 2 are embedded in the corresponding second mounting grooves and connected with the fuselage bulkhead so as to mount the second connecting pieces 2 of the hinges 10 on the fuselage 30, the fuselage support 301 is also arranged on the part of the fuselage bulkhead surrounding the hatch, and the fuselage support 301 is positioned between the two hinges 10. The wall thickness of the fuselage former is thickened at the junction of the second mounting groove and the fuselage seat 301 to increase strength.

As shown in fig. 1-8, an aircraft in accordance with an embodiment of the present utility model includes a fuselage 30 and a nose door, which is a door assembly in accordance with an embodiment of the present utility model.

Specifically, as shown in fig. 3, the front end of the fuselage 30 has a nose hatch, and the nose hatch is connected to the front end of the fuselage 30 to open and close the nose hatch through the hatch body 20, and when the nose hatch is closed, the hatch body 20 is the nose of the aircraft.

The nose cabin door of the airplane provided by the embodiment of the utility model is a cabin door assembly, so that the cabin door body can rotate relative to the machine body to open and close the cabin opening, and the hinge enables the rotation angle of the cabin door body relative to the machine body to be larger than 90 degrees, and the rotation angle can reach 180 degrees at most, so that the cabin door body can be prevented from obstructing goods to pass through the hatch.

It will be appreciated that the door body is not limited to the nose illustrated in fig. 3, and in other embodiments the door body is an arcuate plate disposed on the side of the fuselage.

In some embodiments, the aircraft of the present utility model further comprises a cabin door lock 50, the hinge 10 being connected between the top of the fuselage 30 and the top of the cabin door body 20, the bottom of the cabin door body 20 having a recess, the bottom of the fuselage 30 having a projection 302 that mates with the recess, the cabin door lock 50 being used to lock the projection 302 to the edge of the cabin door body 20 that forms the recess.

As shown in fig. 3, 5 and 6, the hinge 10 is connected between the top of the body 30 and the top of the door body 20, and the door body 20 is rotatable with respect to the body 30 about a left-right direction, in other words, the door body 20 is flipped up and down to open and close the door. Preferably, the cabin door body 20 is driven by a person, the bottom surface of the cabin door body 20 is provided with a push-pull part 204 for holding, preferably, the push-pull part 204 is a groove body, and the skin of the push-pull part 204 is thickened to improve strength.

The front end bottom of the body 30 has a forwardly extending projection 302, the rear end bottom of the hatch body 20 has a forwardly extending recess, the projection 302 is adapted to the recess in shape, in the closed position the projection 302 is adapted to the recess, the projection 302 now functioning to carry the hatch body 20.

The cabin door lock 50 is used for locking the protruding portion 302 with the edge of the cabin door body 20 forming the groove, preferably, the cabin door lock 50 comprises a lock hook and a lock ring, the lock hook is arranged on the edge of the cabin door body 20 forming the groove, in other words, the lock hook is arranged above the groove, the lock ring is arranged on the protruding portion 302 and can rotate around the front and back direction relative to the protruding portion 302, in the closed position, a part of the lock ring can be hung in the lock hook to enable the cabin door body 20 to be locked and connected with the cabin body 30, and when the lock ring is separated from the lock hook, the cabin door body 20 can rotate relative to the cabin door body 30 between the closed position and the open position. The skin thickening at the cabin door lock 50 is provided to enhance strength and prevent the cabin door lock 50 from disengaging.

It will be appreciated that the configuration of the aircraft is not limited to that shown in fig. 3, and in other embodiments the nose door may be pivotable relative to the fuselage in an up-down direction between a closed position and an open position, where the fuselage does not have a projection and the door body does not have a recess.

It will be appreciated that the hinges of embodiments of the present utility model are not limited to being provided on door assemblies and aircraft.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between and not for indicating or implying a relative importance or an implicit indication of the number of features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (12)

1. A hinge, comprising:

A first connection piece (1), the first connection piece (1) being provided with a first arc-shaped groove (11) extending around a first direction;

a second connection piece (2), the second connection piece (2) being provided with a second arc-shaped groove (21) extending around the first direction;

the sliding component (3), the sliding component (3) comprises a body (31), a first sliding block (32) and a second sliding block (33), wherein the first sliding block (32) is arranged on one side of the body (31) in the first direction, the first sliding block (32) is matched with the first arc-shaped groove (11) and can slide relatively with the first connecting piece (1) along the first arc-shaped groove (11), the second sliding block (33) is arranged on the other side of the body (31) in the first direction, and the second sliding block (33) is matched with the second arc-shaped groove (21) and can slide relatively with the second connecting piece (2) along the second arc-shaped groove (21).

2. A hinge according to claim 1, characterized in that the body (31) is arc-shaped extending around the first direction, the first slider (32) being provided at one end in the extending direction of the body (31), the second slider (33) being provided at the other end in the extending direction of the body (31).

3. Hinge according to claim 1, characterized in that the body (31) has a first runner (34) on one side of the first direction, the first runner (34) is arc-shaped extending around the first direction, the first slider (32) is arranged in the first runner (34), at least part of the first connecting piece (1) is embedded in the first runner (34) and can slide relative to the body (31) along the first runner (34),

The body (31) is provided with a second chute (35) at the other side of the first direction, the second chute (35) is arc-shaped extending around the first direction, the second sliding block (33) is arranged in the second chute (35), and at least part of the second connecting piece (2) is embedded in the second chute (35) and can slide relatively with the body (31) along the second chute (35).

4. Hinge according to claim 1, characterized in that said body (31) comprises:

a first member having the first slider (32) and a connection groove, the first slider (32) being provided at one side of the first member in the first direction, the connection groove being arc-shaped extending around the first direction;

and a second member located at the other side of the first member in the first direction, the second member having a third slider at one side thereof adjacent to the first member in the first direction, the third slider being fitted in the connecting groove and being relatively slidable with the first member along the connecting groove, the second member having the second slider (33) at one side thereof remote from the first member in the first direction.

5. Hinge according to claim 1, characterized in that at least one of the first connection piece (1) and the second connection piece (2) comprises a base plate (4) and an extension plate (5), the base plate (4) being provided with the first arc-shaped groove (11) or the second arc-shaped groove (21), the extension plate (5) being provided on the base plate (4), and the extension plate (5) extending in the first direction in a direction away from the body (31).

6. The hinge according to claim 5, wherein the base plate (4) is arc-shaped extending around the first direction, the extending plate (5) includes a straight portion (51) and an arc-shaped portion (52) connected in order from one end in the extending direction of the base plate (4) toward the other end of the base plate (4), the arc-shaped portion (52) is provided inside the arc-shape of the base plate (4), the straight portion (51) is provided at one end in the extending direction of the base plate (4), and the straight portion (51) is for mounting connection.

7. A door assembly, comprising:

a hatch body (20), the hatch body (20) being used for opening and closing a hatch of the fuselage (30);

hinge (10), the hinge (10) is a hinge according to any one of claims 1-6, the first connector (1) is arranged on the cabin door body (20), and the second connector (2) is used for connecting the machine body (30).

8. The door assembly according to claim 7, wherein the door body (20) is rotatable relative to the fuselage (30) between an open position in which the door body (20) opens the hatch and a closed position in which the door body (20) closes the hatch,

the door assembly further comprises a booster device (40), the booster device (40) being connected to the door body (20) and the fuselage (30) for maintaining the door body (20) in an open position when opening the hatch and in a closed position when closing the door body (20).

9. The door assembly according to claim 8, wherein the door body (20) has a recessed space, the inner wall surface of the door body (20) has a door abutment (201) located in the recessed space,

the fuselage (30) has a fuselage mount (301), the fuselage mount (301) extending from the fuselage (30) into the recessed space in the closed position,

the power assisting device (40) is a gas spring, a first end of the power assisting device (40) is hinged with the cabin door support (201), a second end of the power assisting device (40) is hinged with the machine body support (301), and in the closed position, the first end of the power assisting device (40) is far away from the inner wall surface of the cabin door body (20) compared with the second end of the power assisting device (40).

10. The door assembly according to claim 9, characterized in that the door body (20) comprises the door carrier (201), a door spacer (202) and a door skin (203), the door skin (203) being provided outside the door spacer (202), the door carrier (201) and the first connection piece (1) being provided inside the door spacer (202), and the door carrier (201) being located on the side of the first connection piece (1) remote from the edge of the door body (20); and/or

The fuselage (30) comprises a fuselage bulkhead, a fuselage skin and a fuselage support (301), wherein the fuselage skin is arranged on the outer side of the fuselage bulkhead, and the fuselage support (301) and the second connecting piece (2) are arranged on the inner side of the fuselage bulkhead.

11. An aircraft comprising a fuselage (30) and a nose door, the nose door being a door assembly according to any one of claims 7 to 10.

12. The aircraft according to claim 11, further comprising a door lock (50), the hinge (10) being connected between the top of the fuselage (30) and the top of the door body (20), the bottom of the door body (20) having a recess, the bottom of the fuselage (30) having a projection (302) cooperating with the recess, the door lock (50) being adapted to lock the projection (302) to the door body (20) forming an edge of the recess.