Door body hinge structure and aircraft
By adopting the door hinge structure in the aircraft and using telescopic rods and connecting rod components to achieve precise control of the door, the problems of complex structure and large space occupancy of the existing aircraft cabin door are solved, and the opening angle and convenient operation of the cabin door are improved. sex.
Patent Information
- Application Number
- CN202420846780.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The movement mechanism of the existing aircraft hatch has a complex structure, heavy mass and large space occupies, which leads to excessive space in the cabin, affecting the installation of other devices, and the opening angle of the hatch door is small.
The door body hinge structure is adopted to control the expansion and contraction of the telescopic rod to drive the movement of the connecting rod assembly, so as to achieve precise control and drive the opening and closing of the door body. 该结构简单,占用空间小。
It realizes smooth opening and closing of the door body, improves the flexibility of opening angle of the hatch door, reduces space occupation, and improves the operation convenience and safety of the internal space of the aircraft.
Smart Images
Figure CN222457140U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aircraft, in particular to a door hinge structure and an aircraft. Background Art
[0002] In the related art, most aircraft doors are side-flip doors and sliding doors. Side-flip doors mostly use rubber hinges and metal hinges, while sliding doors use sliding hinges. Such door movement mechanisms are simple and complex, heavy, and occupy a large space. They will occupy too much space in the cabin, affect the installation of other components in the cabin, and cause the door to be unable to open or to open at a small angle. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a door hinge structure, which can drive the movement of the connecting rod assembly by controlling the extension and retraction of the telescopic rod, thereby realizing precise control and driving the opening and closing of the door, and has a simple structure and small space occupation.
[0004] According to the door body hinge structure of the first aspect of the utility model, the aircraft includes a door frame and a door body, and the door body is rotatably mounted on the door frame through the door body hinge structure, and the door body hinge structure includes: a base, which is mounted on the door frame; a door body connecting member, which is mounted on the door body, and a first slide groove is provided on the door body connecting member; a connecting rod assembly, the connecting rod assembly includes a first connecting rod and a second connecting rod, the two ends of the first connecting rod are respectively rotatably connected to the base and the door body connecting member, one end of the second connecting rod is rotatably connected to the base, and the other end is provided with a first sliding block rotatably connected to the second connecting rod, and the first sliding block is slidably arranged in the first sliding groove; a driving assembly, the driving assembly includes: a telescopic rod, one end of the telescopic rod is rotatably connected to the base, and the other end is rotatably connected to the first connecting rod.
[0005] According to the door hinge structure of the embodiment of the utility model, the door hinge structure is used to drive the opening or closing of the door body, and is composed of a telescopic rod and a connecting rod assembly, with a simple structure and small space occupation; the telescopic rod drives the connecting rod assembly to move, so that the first connecting rod drives the door body connecting part to rotate, and at the same time drives the first sliding block to slide in the first sliding groove, thereby ensuring the smooth movement of the door body during the opening and closing process; by controlling the extension and retraction of the telescopic rod, the connecting rod assembly can be driven to move, thereby achieving precise control and driving of the opening and closing of the door body.
[0006] According to some embodiments of the present invention, the first connecting rod and the second connecting rod are spaced apart in a direction perpendicular to a plane where the rotation direction of the door body is located.
[0007] According to some embodiments of the utility model, the first connecting rod and the second connecting rod are both parallel to the plane, and the projections of the first connecting rod and the second connecting rod in the plane intersect, wherein the first connecting rod is provided with a second sliding groove extending along its length direction, and the connecting rod assembly also includes a connecting shaft, one end of the connecting shaft is fixed to the second connecting rod, and the other end passes through the second sliding groove and is rotatably connected to the end of the telescopic rod.
[0008] According to some embodiments of the present utility model, the rotational connection point between the first connecting rod and the door frame is the first connection point, the connecting piece between the second connecting rod and the door frame is the second connection point, the rotational connection point between the telescopic rod and the door frame is the third connection point, and the second connection point is located between the first connection point and the third connection point.
[0009] According to some embodiments of the present invention, openings are provided at both ends of the first sliding groove in the length direction of the first sliding groove.
[0010] According to some embodiments of the present invention, the length of the second connecting rod is greater than the length of the first connecting rod.
[0011] According to some embodiments of the present invention, the telescopic rod is an electric telescopic rod or a pneumatic telescopic rod.
[0012] According to some embodiments of the utility model, the door body connecting member includes a first mounting plate and a second mounting plate which are angled with each other, the first connecting rod and the second connecting rod are both connected to the first mounting plate, the door body is fixedly connected to the second mounting plate, and the angle between the first mounting plate and the second mounting plate is an obtuse angle.
[0013] According to some embodiments of the present utility model, hinged ear plates are provided on the base and the door body connecting member, and the hinged ear plates are used to be hinged to the first connecting rod or the second connecting rod.
[0014] An aircraft according to an embodiment of the second aspect of the utility model is a door hinge structure according to the embodiment of the first aspect of the utility model.
[0015] According to the aircraft of the embodiment of the utility model, by providing the above-mentioned door hinge structure, the connecting rod assembly can be driven to move by controlling the extension and retraction of the telescopic rod, thereby achieving precise control and driving of the opening and closing of the door of the aircraft.
[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0018] Figure 1 is a schematic diagram of a door body when it is closed according to some embodiments of the utility model;
[0019] Figure 2 yes Figure 1 Schematic diagram of the door after opening;
[0020] Figure 3 is a schematic diagram of a door hinge structure when the door is closed according to some embodiments of the utility model;
[0021] Figure 4 is a schematic diagram of a door hinge structure when the door is opened according to some embodiments of the utility model;
[0022] Figure 5 is a schematic diagram of a base according to some embodiments of the utility model;
[0023] Figure 6 is a schematic diagram of a door body connecting member according to some embodiments of the utility model;
[0024] Figure 7 is a schematic diagram of a first connecting rod according to some embodiments of the utility model;
[0025] Figure 8 is a schematic diagram of a second connecting rod according to some embodiments of the utility model.
[0026] Reference numerals:
[0027] 100. Door hinge structure;
[0028] 10. base; 11. first connecting hole;
[0029] 20, door body connecting member; 21, first mounting plate; 211, first slide groove; 22, second mounting plate; 221, third connecting hole; 23, hinged ear plate; 231, first hinged plate; 2311, first fixing hole; 232, second hinged plate; 2321, second fixing hole;
[0030] 30. connecting rod assembly; 31. first connecting rod; 311. second sliding groove; 32. second connecting rod; 321. first sliding block; 322. third fixing hole; 33. connecting shaft;
[0031] 40. driving assembly; 41. telescopic rod;
[0032] 51. Door frame; 52. Door body. DETAILED DESCRIPTION
[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0034] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0035] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0036] Reference below Figure 1-Figure 8 A door hinge structure 100 according to an embodiment of the present invention is described.
[0037] The door hinge structure 100 according to the first aspect of the present invention is used in an aircraft. The aircraft includes a door frame 51 and a door 52. The door 52 is rotatably mounted on the door frame 51 through the door hinge structure 100. The door 52 is opened or closed by rotating the door hinge structure 100.
[0038] The door hinge structure 100 includes a base 10, a door connector 20, a connecting rod assembly 30 and a driving assembly 40. The base 10 is mounted on the door frame 51. The base 10, as the basic part of the door hinge structure 100, is fixedly mounted on the door frame 51 of the aircraft to provide support and connection points for other components. For example, a first connection hole 11 is formed on the base 10, and a second connection hole is formed on the door frame 51. The number of the first connection holes 11 and the number of the second connection holes are equal and correspond one to one. Fasteners can be used to penetrate the first connection holes 11 and the second connection holes to fix the base 10 to the door frame 51.
[0039] The door body connecting member 20 is installed on the door body 52, and a first slide groove 211 is provided on the side of the door body connecting member 20 facing away from the door body 52 to achieve linkage with the connecting rod assembly 30; the connecting rod assembly 30 includes a first connecting rod 31 and a second connecting rod 32, and the two ends of the first connecting rod 31 are respectively rotatably connected to the base 10 and the door body connecting member 20, one end of the second connecting rod 32 is rotatably connected to the base 10, and the other end of the second connecting rod 32 is provided with a first slider 321, the first slider 321 is rotatably connected to the second connecting rod 32, and the first slider 321 can be slidably arranged in the first slide groove 211, and the first slider 321 can slide in the first slide groove 211 of the door body connecting member 20, thereby ensuring the smooth movement of the door body 52 during the opening and closing process.
[0040] The driving assembly 40 includes a telescopic rod 41, one end of which is rotatably connected to the base 10, and the other end of which is rotatably connected to the first connecting rod 31. By controlling the extension and retraction of the telescopic rod 41, the connecting rod assembly 30 can be driven to move, thereby realizing precise control and driving of the opening and closing action of the door body 52. For example, the opening angle of the door body 52 is greater than 100°.
[0041] When the door body 52 needs to be opened, the telescopic rod 41 extends toward the direction of the first connecting rod 31, and the telescopic rod 41 drives the first connecting rod 31 to move. The movement of the first connecting rod 31 can drive the door body 52 to open, and at the same time, it can drive the second connecting rod 32 to move. The first slider 321 at the other end of the second connecting rod 32 can slide in the first sliding groove 211 to drive the door body 52 to open. When the door body 52 needs to be closed, the telescopic rod 41 retracts to drive the first connecting rod 31 to move. When the first connecting rod 31 moves, it can drive the door body 52 to close, and at the same time, it can drive the second connecting rod 32 to move. The first slider 321 at the other end of the second connecting rod 32 can slide in the first sliding groove 211 to drive the door body 52 to close.
[0042] According to the door hinge structure 100 of the embodiment of the utility model, the door hinge structure 100 is used to drive the opening or closing of the door body 52, and is composed of a telescopic rod 41 and a connecting rod assembly 30. It has a simple structure and occupies a small space; the telescopic rod 41 drives the connecting rod assembly 30 to move, so that the first connecting rod 31 drives the door body connector 20 to rotate, and at the same time drives the first sliding block 321 to slide in the first sliding groove 211, thereby ensuring the smooth movement of the door body 52 during the opening and closing process; by controlling the extension and retraction of the telescopic rod 41, the connecting rod assembly 30 can be driven to move, thereby realizing precise control and driving of the opening and closing of the door body 52.
[0043] According to some embodiments of the present invention, referring to Figure 1-Figure 4 In the direction perpendicular to the plane where the door body 52 rotates, the first link 31 and the second link 32 are spaced apart, ensuring that the first link 31 and the second link 32 are not overlapped in the three-dimensional space, thereby avoiding the interference problem between the first link 31 and the second link 32 when the door body 52 rotates, and enabling the door body 52 to achieve a more flexible and wider range of motion during the opening and closing process, while ensuring the stability and reliability of the structure, which is conducive to improving the operational convenience and safety of the interior space of the aircraft.
[0044] According to some embodiments of the present invention, referring to Figure 1-Figure 4 The first connecting rod 31 and the second connecting rod 32 are parallel to the plane, and the projections of the first connecting rod 31 and the second connecting rod 32 in the plane intersect, and the first connecting rod 31 and the second connecting rod 32 form a cross-type connection structure in three-dimensional space. The first connecting rod 31 is provided with a second slide groove 311, and the second slide groove 311 extends along its length direction. The connecting rod assembly 30 also includes a connecting shaft 33, one end of which is fixed to the second connecting rod 32, and the other end passes through the second slide groove 311 and is rotatably connected to the end of the telescopic rod 41.
[0045] When it is necessary to open the door body 52, the telescopic rod 41 extends to drive the connecting shaft 33 to move, and the connecting shaft 33 can slide along the second sliding groove 311, while driving the first connecting rod 31 and the second connecting rod 32 to move. When the first connecting rod 31 and the second connecting rod 32 move, the door body 52 can be driven to open; when it is necessary to close the door body 52, the telescopic rod 41 retracts to pull the connecting shaft 33 to move, and the connecting shaft 33 can slide along the second sliding groove 311, while pulling the first connecting rod 31 and the second connecting rod 32 to move. When the first connecting rod 31 and the second connecting rod 32 move, the door body 52 can be driven to close.
[0046] According to some embodiments of the present invention, referring to Figure 1-Figure 4, the rotation connection point between the first connecting rod 31 and the door frame 51 is the first connection point, and the first connection point is the direct interaction point between the connecting rod assembly 30 and the basic structure of the door frame 51. The connecting piece between the second connecting rod 32 and the door frame 51 is the second connection point, and the second connection point ensures that the second connecting rod 32 can participate in the rotation movement of the door body 52. The rotation connection point between the telescopic rod 41 and the door frame 51 is the third connection point, and the telescopic rod 41 drives the movement of the connecting rod assembly 30 and the door body 52 through the force of the third connection point. The second connection point is located between the first connection point and the third connection point, and the third connection point is located on the side of the second connection point away from the first connection point, that is, the second connection point and the third connection point are both located on the same side of the first connection point, which can facilitate the driving assembly 40 to drive the connecting rod assembly 30 to move.
[0047] According to some embodiments of the present invention, referring to Figure 3-Figure 4 , Figure 6 In the length direction of the first slide groove 211, both ends of the first slide groove 211 are provided with openings, which can enable the first slider 321 to slide freely in the first slide groove 211, so that the door body 52 can be opened at a larger angle, increasing the angular flexibility of opening and closing the door body 52, but the travel of the first slider 321 in the first slide groove 211 is limited, so the first slider 321 will not slide out from the openings at both ends of the first slide groove 211; at the same time, the opening design facilitates the installation and disassembly of the first slider 321, which provides convenience for the maintenance and inspection of the hinge structure.
[0048] According to some embodiments of the present invention, referring to Figure 3-Figure 4 , Figure 7-Figure 8 The length of the second connecting rod 32 is greater than that of the first connecting rod 31. The longer second connecting rod 32 allows the door body 52 to rotate within a wider angle range, which can meet the different requirements of aircraft for the door opening angle. When the telescopic rod 41 drives the connecting rod assembly 30, a greater lever arm effect can be generated, thereby reducing the required driving force, which is more energy-saving and efficient.
[0049] According to some embodiments of the present invention, referring to Figure 3-Figure 4 The telescopic rod 41 is an electric telescopic rod 41 or a pneumatic telescopic rod 41. The electric telescopic rod 41 controls the extension and retraction of the telescopic rod 41 through the power system to realize the automatic opening and closing of the door body 52, which is convenient for integration with the electronic control system of the aircraft, and has rapid response and precise control. The pneumatic telescopic rod 41 controls the extension and retraction of the telescopic rod 41 through compressed air to realize the automatic opening and closing of the door body 52. The pneumatic telescopic rod 41 has the characteristics of fast response speed, safe and reliable operation.
[0050] According to some embodiments of the present invention, referring to Figure 1-Figure 4 , Figure 6The door body connecting member 20 includes a first mounting plate 21 and a second mounting plate 22 which are angled with each other, the first connecting rod 31 and the second connecting rod 32 are both connected to the first mounting plate 21, and the door body 52 is fixedly connected to the second mounting plate 22 to achieve effective transmission between the connecting rod assembly 30 and the door body connecting member 20. For example, a third connecting hole 221 is formed on the second mounting plate 22, and a fourth connecting hole is formed on the door body 52. The number of the third connecting holes 221 is equal to the number of the fourth connecting holes and corresponds to each other. Fasteners can be used to penetrate the third connecting holes 221 and the fourth connecting holes to fix the door body connecting member 20 to the door body 52.
[0051] The angle between the first mounting plate 21 and the second mounting plate 22 is an obtuse angle, which adapts to the internal space layout of the aircraft and the movement trajectory required for the door body 52 to be opened and closed. By increasing the angle between the first mounting plate 21 and the second mounting plate 22, the maximum movement range of the door body 52 when opened can be increased. At the same time, it is also beneficial to reduce the interference of the door body 52 to the surrounding equipment or structures when it is opened within a limited space, thereby improving the utilization efficiency of the internal space of the aircraft and the safety of personnel operations.
[0052] According to some embodiments of the present invention, referring to Figure 1-Figure 8 The base 10 and the door body connector 20 are both provided with hinged ear plates 23, which are used to be hinged with the first connecting rod 31 or the second connecting rod 32. The hinged ear plate 23 on the base 10 is connected to one end of the first connecting rod 31 and one end of the second connecting rod 32, so that the connecting rod assembly 30 can rotate relative to the base 10; and the hinged ear plate 23 on the door body connector 20 is connected to the other end of the first connecting rod 31, ensuring that the door body 52 can cooperate with the base 10 through the connecting rod assembly 30 when opening and closing, and realize smooth and controllable rotation. Such a design not only ensures the flexibility of opening and closing of the door body 52, but also enhances the bearing capacity and service life of the door body hinge structure 100. At the same time, the existence of the hinged ear plate 23 can also effectively reduce the local stress concentration at the hinge stress point, thereby improving the overall strength and safety of the door body hinge structure 100.
[0053] For example, each hinge ear plate 23 includes a first hinge plate 231 and a second hinge plate 232, one end of the first connecting rod 31 and the second connecting rod 32 are located between the first hinge plate 231 and the second hinge plate 232, the first hinge plate 231 has a first fixing hole 2311, the second hinge plate 232 has a second fixing hole 2321 opposite to the first fixing hole 2311, the first connecting rod 31 and the second connecting rod 32 have a third fixing hole 322 opposite to the first fixing hole 2311 and the second fixing hole 2321, and a pin can be passed through the first fixing hole 2311, the third fixing hole 322 and the second fixing hole 2321, so that the first connecting rod 31 and the second connecting rod 32 can be hinged and rotated with the base 10 or the door body connecting member 20.
[0054] An aircraft according to an embodiment of the second aspect of the utility model is a door hinge structure 100 according to the embodiment of the first aspect of the utility model.
[0055] According to the aircraft of the embodiment of the utility model, by providing the above-mentioned door hinge structure 100, by controlling the extension and retraction of the telescopic rod 41, the connecting rod assembly 30 can be driven to move, thereby achieving precise control and driving of the opening and closing of the door 52 of the aircraft.
[0056] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A door hinge structure for an aircraft, characterized in that: The aircraft comprises a door frame and a door body, wherein the door body is rotatably mounted on the door frame through the door body hinge structure, and the door body hinge structure comprises: A base, the base being mounted on the door frame; A door body connecting piece, wherein the door body connecting piece is installed on the door body and a first sliding groove is provided on the door body connecting piece; A connecting rod assembly, the connecting rod assembly comprising a first connecting rod and a second connecting rod, the two ends of the first connecting rod are rotatably connected to the base and the door body connecting member respectively, one end of the second connecting rod is rotatably connected to the base, and the other end is provided with a first sliding block rotatably connected to the second connecting rod, and the first sliding block is slidably arranged in the first sliding groove; The driving assembly comprises a telescopic rod, one end of which is rotatably connected to the base, and the other end of which is rotatably connected to the first connecting rod.
2. The door hinge structure according to claim 1, characterized in that: The first link and the second link are spaced apart in a direction perpendicular to a plane where the rotation direction of the door body is located.
3. The door hinge structure according to claim 2, characterized in that: The first connecting rod and the second connecting rod are both parallel to the plane, and the projections of the first connecting rod and the second connecting rod in the plane intersect, wherein the first connecting rod is provided with a second sliding groove extending along its length direction, and the connecting rod assembly also includes a connecting shaft, one end of the connecting shaft is fixed to the second connecting rod, and the other end passes through the second sliding groove and is rotatably connected to the end of the telescopic rod.
4. The door hinge structure according to claim 3, characterized in that: The rotation connection point between the first connecting rod and the door frame is the first connection point, the connecting piece between the second connecting rod and the door frame is the second connection point, the rotation connection point between the telescopic rod and the door frame is the third connection point, and the second connection point is located between the first connection point and the third connection point.
5. The door hinge structure according to any one of claims 1 to 4, characterized in that: In the length direction of the first sliding groove, both ends of the first sliding groove are provided with openings.
6. The door hinge structure according to claim 1, characterized in that: The length of the second connecting rod is greater than the length of the first connecting rod.
7. The door hinge structure according to claim 1, characterized in that: The telescopic rod is an electric telescopic rod or a pneumatic telescopic rod.
8. The door hinge structure according to claim 1, characterized in that: The door body connecting member includes a first mounting plate and a second mounting plate which are angled with each other, the first connecting rod and the second connecting rod are both connected to the first mounting plate, the door body is fixedly connected to the second mounting plate, and the angle between the first mounting plate and the second mounting plate is an obtuse angle.
9. The door hinge structure according to claim 1, characterized in that: The base and the door body connecting member are both provided with hinged ear plates, and the hinged ear plates are used to be hinged with the first connecting rod or the second connecting rod.
10. An aircraft, characterized in that: The invention comprises the door hinge structure described in any one of claims 1 to 9.