Hinge structure of composite cabin door

By using a telescopic structure composed of a gas spring and a triangular base, combined with an aluminum alloy hinge and a multi-point riveted bracket design, the problems of easy cracking and limited functionality of composite material hatch hinges are solved, enabling hovering and opening/closing functions, and enhancing connection strength and service life.

CN223593984UActive Publication Date: 2025-11-25SHIJIAZHUANG AIRCRAFT IND CO LTD
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Patent Information

Application Number
CN202422845702.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-11-25
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

The existing composite material hatch hinge structure is prone to cracking and lacks hovering and opening/closing functions.

Method used

The telescopic structure, consisting of a gas spring and a triangular base, combined with aluminum alloy hinges and a multi-point riveted bracket design, enhances connection strength and enables hovering functionality.

Benefits of technology

It reduces the risk of cracking at the hatch joints, provides hovering and opening/closing functions, and enhances the service life of composite material hatches.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hinge structure of a composite material cabin door. A composite material structure cabin comprises a cabin body and the cabin door capable of being opened. A hinge structure is arranged between the cabin body and the cabin door; the hinge structure comprises a hinge mounted between a cabin body and a cabin door and an auxiliary opening device, wherein the auxiliary opening device comprises a support assembly, a gas spring and a triangular seat; the other end of the air spring is hinged to the triangular base, and the other end of the hinge is fixedly connected with the cabin door. The support assembly comprises a first support 1, a support and a second support. The utility model has the beneficial effects that the connection of the triangular seat and the hinge reinforces the composite material structure to a certain extent, and the triangular seat increases the contact area with the cabin door of the composite material seat, so that the force transmitted to the composite material structure per unit area is reduced; the gas spring, the support and the triangular seat form a telescopic structure, so that the functions of opening, closing and hovering of the cabin are realized; and the cracking probability of the cabin body and the cabin door at the hinge joint is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to cabin door application technical field, especially a hinge structure of composite material cabin door. BACKGROUND

[0002] The hinge of the present composite material cabin door is generally embedded with high toughness parts to fix the hinge structure, and the disadvantage is that the embedded parts and the composite material cabin door connection position are easy to crack; the general hinge structure only controls the opening and closing of the cabin door, and does not have the hovering opening function, which is inconvenient.

[0003] In the prior art, the patent with the application number CN201480004946.3 and the name hinge discloses that the hinge (1) is of the type comprising a fixed support (2) coupled to a compartment frame and a movable support (3) coupled to a door, wherein this movable support and the fixed support at least rotatably constrain one to the other. The hinge also comprises a work to impose a predefined law of movement with respect to the fixed support to the movable support during the opening and / or closing of the door; the support of the hinge is directly fixed to the frame, which is not suitable for the cabin door of the composite material.

[0004] There is also a patent with the application number CN200680023970.7 and the name hinge, which discloses two pivot elements suitable for hingedly connecting two objects, and each pivot element comprises an attachment device for attaching to the object, and the application does not disclose the detailed structure of the attachment device, and cannot be directly applied to the cabin door of the composite material. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a hinge structure of composite material cabin door, which can replace the embedded parts and avoid cracking at the connection position.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] The composite material structure cabin comprises a cabin body and an openable cabin door, and a hinge structure of the composite material cabin door; the hinge structure comprises a support assembly fixedly connected to the cabin body, an air spring having one end hingedly connected to the support assembly, a hinge having one end fixedly connected to the support assembly, and a triangular seat fixedly connected to the cabin door; the other end of the air spring is hingedly connected to the triangular seat, and the other end of the hinge is fixedly connected to the cabin door.

[0008] Further, the support assembly comprises a first bracket, a support and a second bracket fixedly connected to the cabin body in sequence; the support is hingedly connected to one end of the air spring.

[0009] Further, the first support is arranged on the inner side of the cabin body, and the outer side of the cabin body opposite to the first support is provided with a first connecting block and a second connecting block; the first support is fixed on the cabin body through rivets respectively with the first connecting block and the second connecting block.

[0010] Further, the second support is arranged on the inner side of the cabin body, and the outer side of the cabin body opposite to the second support is provided with a third connecting block and a fourth connecting block; the second support is fixed on the cabin body through rivets respectively with the third connecting block and the fourth connecting block.

[0011] Further, the support is riveted with the cabin body through the second connecting block and the third connecting block respectively at two ends.

[0012] Further, the first support is in the shape of several Chinese characters, and a reinforcing rod is arranged between two side edges of the first support; the second support is the same in structure as the first support.

[0013] Further, the triangular seat is arranged on the inner surface of the cabin door, and the outer surface of the cabin door opposite to the triangular seat is provided with a connecting plate, and the connecting plate and the triangular seat are fixed with the cabin door through riveting.

[0014] The positive effect of the utility model is:

[0015] The connection of the triangular seat and the hinge itself reinforces the composite material structure, the triangular seat increases the contact area with the composite material seat cabin door, thereby reducing the force per unit area transmitted to the composite material structure; the telescopic structure composed of the gas spring, the support and the triangular seat realizes the functions of opening and closing of the seat cabin and hovering; by reducing the force transmitted to the composite material cabin door part during opening and closing, the cracking probability of the hinge connection part of the cabin body and the cabin door is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the three-dimensional structure schematic view of the utility model;

[0017] Figure 2 is the three-dimensional structure schematic view of the utility model from another angle;

[0018] Figure 3 is the three-dimensional structure schematic view without the triangular seat;

[0019] Figure 4 is the three-dimensional structure schematic view without the triangular seat from another angle.

[0020] In the drawing:

[0021] 1-first support, 2-first connecting block, 3-second connecting block, 4-support, 5-third connecting block, 6-second support, 7-fourth connecting block, 8-hinge, 9-gas spring, 10-triangular seat, 11-reinforcing rod, 61-second reinforcing rod. DETAILED DESCRIPTION

[0022] Embodiment 1

[0023] As shown in Figures 1 to 4 ,

[0024] The composite material structure cabin comprises a cabin body and a cabin door capable of being opened; a hinge structure of the composite material cabin door is arranged between the cabin body and the cabin door; the composite material refers to a glass fiber composite material.

[0025] As shown in Figure 1 , the hinge structure comprises a hinge 8 and an auxiliary opening device arranged between the cabin body and the cabin door,

[0026] The auxiliary opening device comprises a support assembly fixedly connected to the cabin body, a gas spring 9 having one end hingedly connected to the support assembly, and a triangular seat 10 fixedly connected to the cabin door; the other end of the gas spring 9 is hingedly connected to the triangular seat 10, and the other end of the hinge 8 is fixedly connected to the cabin door.

[0027] The support assembly comprises a first support 1, a support 4, and a second support 6 fixedly connected to the cabin body in sequence; the support 4 is hingedly connected to one end of the gas spring 9.

[0028] The detailed structure is shown in Figure 3 / 4, the first support 1 is arranged on the inner side of the cabin body, and the first connecting block 2 and the second connecting block 3 are arranged on the outer side of the cabin body opposite to the first support 1; the first support 1 is fixed to the cabin body on both sides through rivets respectively with the first connecting block 2 and the second connecting block 3;

[0029] The second support 6 is arranged on the inner side of the cabin body, and the third connecting block 5 and the fourth connecting block 7 are arranged on the outer side of the cabin body opposite to the second support 6; the second support 6 is fixed to the cabin body through rivets respectively with the third connecting block 5 and the fourth connecting block 7;

[0030] In this way, the contact area of the support and the cabin body is increased, the safety is improved, and the problem of easy damage to the cabin body caused by direct fixation on the cabin body is avoided.

[0031] The support 4 is riveted to the cabin body through the second connecting block 3 and the third connecting block 5 at both ends respectively; that is, after the rivet passes through one end of the support 4, it passes through one end of the first support 1, then passes through the cabin body, and then passes through the second connecting block 3, and is riveted, and then the rivet passes through the other end of the support 4, one end of the second support 6, and then passes through the cabin body, and then passes through the third connecting block 5, and is riveted;

[0032] By arranging the connecting blocks on the outer surface of the cabin body and arranging the supports and the support on the inner surface of the cabin body, and by using the riveting mode, the contact area is increased, and the connection strength is further increased. Directly perforating the cabin body can be avoided to prevent the cabin body from being torn.

[0033] The triangular base 10 is located on the inner surface of the hatch, and a connecting plate is located on the outer surface of the hatch opposite to the triangular base 10. The connecting plate and the triangular base 10 are fixed to the hatch by riveting. The hinge 8 consists of two rotatable parts, one part of which is fixed to the triangular base 10, and the other part is riveted to the hatch body through the connecting plate located on the outer surface of the hatch body. This increases the contact area between the hinge 8 and the hatch body and the triangular base 10, preventing tearing at the joint.

[0034] The hinge 8, triangular base 10, two brackets, connecting block, connecting plate and support 4 are all made of aluminum alloy, which gives these parts sufficient strength and prevents damage caused by repeated opening and closing.

[0035] The working process of this utility model is as follows:

[0036] When the hatch needs to be opened, manually move the handle located at the safety lock position at the end of the hatch away from the support 4, lift it upwards, and the hatch will swing along the hinge 8, the gas spring 9 will be stressed, and the hatch will be opened with assistance.

[0037] Example 2

[0038] The difference between this embodiment and Embodiment 1 is that:

[0039] like Figure 1 As shown,

[0040] The first bracket 1 is shaped like a "Z" and a reinforcing rod 11 is provided between the two sides of the first bracket 1; the second bracket 6 has the same structure as the first bracket 1; the two sides of the second bracket 6 are connected by a second reinforcing rod 61; both the first bracket 1 and the second bracket 6 are made by bending steel plates.

[0041] The strength of the first bracket 1 and the second bracket 6 can be enhanced by the reinforcement rod 11 and the second reinforcement rod 61, thus preventing deformation.

[0042] Example 3

[0043] The difference between this embodiment and Embodiment 2 is that:

[0044] like Figure 4 As shown,

[0045] The gas spring 9 mainly consists of a piston rod, piston, sealing guide sleeve, filler, pressure cylinder, and connector. The pressure cylinder is a sealed cavity filled with inert gas or an oil-gas mixture, and the pressure inside the cavity is several or even tens of times atmospheric pressure. When the gas spring operates, the pressure difference across the piston drives the piston rod. Gas springs come in different structures and types to meet various application requirements.

[0046] The cylinder of the gas spring 9 is hinged to one vertex of the triangular seat 10, and one hinge 8 is fixed to each end of the edge of the triangular seat 10 opposite to the vertex, and the hatch is connected by the partial riveting of the connecting plate (on the outer surface of the hatch) and the triangular seat 10 and the hinge 8.

[0047] The hatch can be suspended at the required position by the gas spring 9, which is convenient.

[0048] The above-mentioned embodiment describes the content in more detail and concretely, expresses the preferred embodiment of the utility model, is used for explaining the technical thought and the characteristics of the utility model only, and the purpose is to make the person skilled in the art understand the content of the utility model and to implement accordingly, but is not limited to the utility model only, and the patent range of the utility model cannot be limited by the embodiment only, that is, any equivalent change or modification of the spirit disclosed by the utility model, for the researchers or the technicians in the field, without departing from the structure of the utility model, the partial improvement inside the system and the change between the subsystems, transformation and the like, still is the patent range of the utility model.

Claims

1. A hinge structure for a composite material hatch, the composite material structure hatch comprising a cabin body and an openable hatch; characterized in that, Includes hinges (8) and auxiliary opening devices installed between the hull and the hatch; The auxiliary opening device includes a support assembly fixedly connected to the cabin body, a gas spring (9) with one end hinged to the support assembly, and a triangular seat (10) fixedly connected to the cabin door; the other end of the gas spring (9) is hinged to the triangular seat (10).

2. The hinge structure of a composite material hatch according to claim 1, characterized in that, The support assembly includes a first bracket (1), a support (4) and a second bracket (6) that are fixedly connected to the cabin in sequence; the support (4) is hinged to one end of the gas spring (9).

3. The hinge structure of a composite material hatch according to claim 2, characterized in that, The first bracket (1) is located inside the cabin, and the outer side of the cabin opposite to the first bracket (1) is provided with a first connecting block (2) and a second connecting block (3); the first bracket (1) is fixed to the cabin with the first connecting block (2) and the second connecting block (3) by rivets.

4. The hinge structure of a composite material hatch according to claim 3, characterized in that, The second bracket (6) is located inside the cabin, and the third connecting block (5) and the fourth connecting block (7) are located on the outer side of the cabin opposite to the second bracket (6); the second bracket (6) is fixed to the cabin with the third connecting block (5) and the fourth connecting block (7) by rivets.

5. The hinge structure of a composite material hatch according to claim 4, characterized in that, The two ends of the support (4) are riveted to the cabin body through the second connecting block (3) and the third connecting block (5) respectively.

6. The hinge structure of a composite material hatch according to claim 4, characterized in that, The first bracket (1) is shaped like a zigzag, and a reinforcing rod (11) is provided between the two sides of the first bracket (1); the second bracket (6) has the same structure as the first bracket (1).

7. The hinge structure of a composite material hatch according to claim 1, characterized in that, The triangular seat (10) is located on the inner surface of the hatch, and a connecting plate is provided on the outer surface of the hatch opposite to the triangular seat (10). The connecting plate and the triangular seat (10) are fixed to the hatch by riveting.

Citation Information

Patent Citations

  • Hinge

    CN101213001A

  • Hinge

    CN104968881A