Hinge structure, door body and aircraft

Abstract

The utility model discloses a hinge structure, a door body and an aircraft, the hinge structure comprises a hinge body, one side of the hinge body is provided with a mounting groove, the other side of the hinge body is provided with a supporting part, the mounting groove is internally provided with a connecting shaft which penetrates through the hinge body and is detachably fixed with the hinge body, and the supporting part is arranged on the supporting part. The connecting shaft is connected with at least one elastic piece, one end of the elastic piece is provided with a positioning end, the positioning end extends out of the mounting groove, the other end of the elastic piece is provided with a fixing end, and the fixing end is correspondingly matched with the inner wall of the mounting groove for limiting. The hinge structure is stable in connection and efficient in assembly, and the assembly weight is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of light fixed-wing aircraft, in particular to a hinge structure, a door body and an aircraft. Background Art

[0002] There are various ways to open the doors of small fixed-wing aircraft, including front flip, rear slide, car door, and both sides flip-up. Both sides flip-up is also a gull-wing door opening method. This opening method is influenced by automobile applications and is favored by more and more users. The gull-wing door has a large opening angle, large entry space, strong appearance, simple operation, and low wind resistance, and is selected by many aircraft manufacturers.

[0003] In the existing electric vertical take-off and landing (EVTOL) aircraft field, gull-wing doors are widely used, but most of such structures adopt a combination of hinges and gas springs, relying on the thrust of the gas spring to support the gravity of the gull-wing door to achieve a balance of force when opening and closing, making the opening and closing comfortable and smooth.

[0004] However, after long-term use, this gas spring structure also has certain defects. The position of the gas spring installed in the fuselage frame needs to be strengthened, and the metal ear piece connecting the gas spring is installed with bolts, which increases the complexity and unreliability of the entire gull-wing door system. The method of adding gas springs on one side of the door body will cause asymmetry and cause the gull-wing door to deform; the method of adding gas springs on both sides of the door body makes the entire system more complex, heavier and more expensive. Utility Model Content

[0005] The purpose of the utility model is to solve the above technical problems and provide a hinge structure, a door body and an aircraft, so as to achieve stable connection of the hinge structure, efficient assembly and reduced assembly weight. In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A hinge structure includes a hinge body, a mounting groove is provided on one side of the hinge body, a support portion is provided on the other side of the hinge body, a connecting shaft is provided in the mounting groove and passes through the hinge body and is detachably fixed to the hinge body, the connecting shaft is connected to at least one elastic member, a positioning end is provided at one end of the elastic member, the positioning end extends out of the mounting groove, and a fixed end is provided at the other end of the elastic member, and the fixed end corresponds to the inner wall of the mounting groove for limiting positioning.

[0007] Specifically, the hinge structure is installed between a first component and a second component, the first component is provided with a plurality of fixing grooves, one end of the hinge structure is embedded in the fixing groove, and the other end of the hinge structure is detachably connected to the second component.

[0008] Specifically, the fixing groove has an upper groove opening facing upwards of the first component and a side groove opening facing a side of the first component, and the upper groove opening and the side groove opening are arranged through-through.

[0009] Specifically, both ends of the connecting shaft pass through the hinge body respectively, and both sides of the groove wall of the fixing groove are respectively provided with shaft holes corresponding to the connecting shaft.

[0010] Specifically, the second component includes a frame, an edge of the frame is provided with an arc-shaped portion, a side of the hinge body facing away from the mounting groove is detachably connected to the frame, and the support portion abuts against the arc-shaped portion.

[0011] Specifically, the installation groove is provided with a through opening toward the end of the hinge body, the elastic member is set on the connecting shaft, and one end of the elastic member is positioned to the fixing groove through the through opening, and the other end of the elastic member is positioned to the groove wall of the installation groove.

[0012] Specifically, a fixing hole for positioning the elastic member is provided at the bottom of the fixing groove, the positioning end of the elastic member is plug-fitted into the fixing hole correspondingly, and the fixing end of the elastic member is abutted against the groove wall of the installation groove.

[0013] Specifically, at least one set of mounting parts is disposed on the hinge body, and the mounting parts penetrate through the hinge body and abut against the outer wall of the connecting shaft.

[0014] The door body comprises the hinge structure.

[0015] An aircraft comprises the door body.

[0016] Compared with the prior art, the hinge structure, door body and aircraft of the utility model have the following beneficial effects:

[0017] The hinge structure is provided with an installation groove, in which a connecting shaft and an elastic part are placed, and both ends of the connecting shaft pass through the hinge body, which facilitates the assembly of the hinge structure as a whole and improves the assembly efficiency; the elastic part is installed on the connecting shaft and embedded in the installation groove, so as to realize the automatic elastic reset function after the hinge structure is flipped, reduce unnecessary other parts to connect the hinge structure, have the characteristics of lightweight, and reduce manufacturing costs; the support part can strengthen the supporting strength and connection strength of the hinge body, and improve the connection stability of the overall hinge structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a front view of an aircraft provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the structure of the door body provided in the embodiment of the present application;

[0020] Figure 3 A schematic diagram of a partial installation of a hinge structure provided in an embodiment of the present application;

[0021] Figure 4 A schematic diagram of a hinge structure provided in an embodiment of the present application;

[0022] Reference numerals:

[0023] Hinge structure 100, door body 101, aircraft 102;

[0024] Hinge body 1;

[0025] Mounting slot 2, through opening 21;

[0026] Support part 3;

[0027] Connecting shaft 4;

[0028] Elastic member 5, positioning end 51, fixed end 52;

[0029] First component 6, fixing slot 61, upper slot 62, side slot 63, fixing hole 64, door 65;

[0030] The second component 7, the frame 71, the arc portion 72, and the door edge 73;

[0031] Mounting piece 8. DETAILED DESCRIPTION

[0032] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0033] Embodiment 1

[0034] The present embodiment provides a hinge structure 100, which is used as a connection structure of a door panel. It is not limited to being used between a door panel and a door frame, but can be applied to any device that needs to be opened and closed, and has the functions of elastic automatic opening and concealed installation. The hinge structure 100 has a wide range of applications, is simple and compact, has efficient assembly, and is lightweight.

[0035] Figure 2 This is a schematic diagram of the structure of the door body provided in Example 1 of the present application. Figure 3 This is a partial installation diagram of the hinge structure provided in Example 1 of the present application. Figure 4 This is a schematic diagram of the hinge structure provided in Example 1 of the present application.

[0036] like Figure 2-Figure 4As shown, the present embodiment provides a hinge structure 100, including a hinge body 1, a mounting groove 2 is provided on one side of the hinge body 1, a support portion 3 is provided on the other side of the hinge body 1, a connecting shaft 4 is provided in the mounting groove 2 and passes through the hinge body 1 and is detachably fixed thereto, the connecting shaft 4 is connected to at least one elastic member 5, a positioning end 51 is provided at one end of the elastic member 5, the positioning end 51 extends out of the mounting groove 2, a fixed end 52 is provided at the other end of the elastic member 5, and the fixed end 52 corresponds to the inner wall of the mounting groove 2 for limiting.

[0037] The hinge structure 100 provided in this embodiment is used as a connecting member between two adjacent components. The hinge structure 100 has a connecting function and a supporting function, and it also has an elastic reset function when combined with the elastic member 5 .

[0038] The hinge structure 100 is installed between the first component 6 and the second component 7. The first component 6 and the second component 7 can be located at an upper and lower position in the vertical direction in the space, so as to realize the first component 6 and the second component 7 to flip up and down relative to each other to open and close, or they can be located at a left and right position in the horizontal direction in the space, so as to realize the first component 6 and the second component 7 to flip up and down relative to each other to open and close. The hinge structure 100 can be selectively set as an up and down flip opening and closing structure, or a left and right flip opening and closing structure according to the specific usage scenario. In this embodiment, the first component 6 and the second component 7 are connected to form an up and down flip opening and closing structure through the hinge structure 100, specifically, the first component 6 is located in the lower position, the second component 7 is located in the upper position, and the second component 7 realizes the flip opening and closing action relative to the first component 6 through the hinge structure 100.

[0039] The first component 6 is provided with a plurality of fixing grooves 61, one end of the hinge structure 100 is embedded in the fixing groove 61, and the other end of the hinge structure 100 is detachably connected to the second component 7. One end of the hinge structure 100 cooperates with the fixing groove 61 and is partially hidden in the fixing groove 61. When the first component 6 and the second component 7 are closed, the hinge structure 100 can be completely hidden between the first component 6 and the second component 7 to avoid being exposed and affecting the appearance. At the same time, the tightness of the first component 6 and the second component 7 after closing can also be ensured.

[0040] The fixing groove 61 has an upper groove 62 facing the top of the first component 6 and a side groove 63 facing the side of the first component 6. The upper groove 62 and the side groove 63 are arranged through, and the side groove 63 is located in the opening and closing space relative to the first component 6 and the second component 7. Therefore, when the hinge structure 100 is flipped to open and close, it can move between the upper groove 62 and the side groove 63. The upper groove 62 and the side groove 63 play a role in positioning and guiding the hinge structure 100, so that the hinge structure 100 has enough space for flipping activities during the opening and closing flipping actions of the first component 6 and the second component 7.

[0041] Both ends of the connecting shaft 4 pass through the hinge body respectively, and shaft holes corresponding to the connecting shaft 4 are respectively arranged on both sides of the groove wall of the fixing groove 61 (not marked in the figure), thereby keeping the two ends of the connecting shaft 4 balanced and positioned in the fixing groove 61, and the connecting shaft 4 can rotate freely in the shaft holes.

[0042] The second component 7 includes a frame 71, and an arc portion 72 is provided at the edge of the frame 71. The side of the hinge body facing away from the mounting groove 2 is detachably connected to the frame 71. The hinge body and the frame 71 can be connected by means of a snap connection, a screw connection, a pin connection, etc. In this embodiment, the hinge body and the frame 71 are fixed by screw connection. After the hinge structure 100 and the second component 7 are assembled into one body, they can be assembled with the first component 6 again.

[0043] The support portion 3 abuts against the arc portion 72 correspondingly. Specifically, the support portion 3 and the arc portion 72 are configured in a corresponding contour. The support portion 3 effectively supports the connection transition position between the frame 71 and the arc portion 72. When the second component 7 is in an upward flipped state relative to the first component 6, the weight of the second component 7 acts on the hinge body and its support portion 3. The provision of the support portion 3 can effectively enhance the supporting strength of the hinge body and provide a stable supporting effect for the arc portion 72.

[0044] In this embodiment, the hinge structure 100 is provided with a mounting groove 2, in which a connecting shaft 4 and an elastic member 5 are placed. Both ends of the connecting shaft 4 pass through the hinge body, which is convenient for the overall assembly of the hinge structure 100 and improves the assembly efficiency; the elastic member 5 is installed on the connecting shaft 4 and embedded in the mounting groove 2, so as to realize the automatic elastic reset function of the hinge structure 100 after flipping, reduce unnecessary other components connected to the hinge structure 100, have the characteristics of lightweight, and reduce the manufacturing cost; the support part 3 can strengthen the supporting strength and connection strength of the hinge body, and improve the connection stability of the overall hinge structure 100.

[0045] Embodiment 2

[0046] This embodiment optimizes the hinge structure on the basis of the above embodiment, and in particular provides a specific implementation method of the hinge body:

[0047] The hinge body is provided with a mounting groove 2, which may be a square groove, a semicircular groove or a special-shaped groove. This embodiment is described by taking the mounting groove 2 as a square groove as an example.

[0048] Figure 2 This is a schematic diagram of the structure of the door body provided in the second embodiment of the present application. Figure 3 This is a schematic diagram of the partial installation of the hinge structure provided in Example 2 of the present application.

[0049] like Figure 2 , Figure 3As shown, the end of the mounting groove 2 facing the hinge body is provided with a through opening 21, the elastic member 5 is set on the connecting shaft 4, and one end of the elastic member 5 is positioned to the fixing groove 61 through the through opening 21, and the other end of the elastic member 5 is positioned to the groove wall of the mounting groove 2. The number of the elastic member 5 can be one, two, or more. In this embodiment, the elastic member 5 is a torsion spring, and the number is two. The two torsion springs are respectively arranged on the connecting shaft 4 on both sides of the groove of the mounting groove 2.

[0050] In this embodiment, the bottom of the fixing groove 61 is provided with a fixing hole 64 for positioning the elastic member 5, the positioning end 51 of the elastic member 5 is correspondingly plugged into the fixing hole 64, and the fixing end 52 of the elastic member 5 is in abutment with the groove wall of the installation groove 2. When the elastic member 5 is assembled with the connecting shaft 4, the elastic member 5 is naturally in a non-compressed state, and the elastic member 5 can be easily placed in the installation groove 2, the positioning end 51 of the elastic member 5 is plugged into the fixing hole 64, and the fixing end 52 of the elastic member 5 is in abutment with the installation groove 2, and then the connecting shaft 4 passes through the elastic member 5 and the hinge body to limit the elastic member 5; when the elastic member 5 is in a compressed state, an elastic angle space is formed between its positioning end 51 and the fixing end 52, and when the elastic member 5 is in a pressure release state, its fixing end 52 drives the hinge body to automatically rebound to the initial position.

[0051] The connecting shaft 4 and the hinge body are detachably fixed, and at least one set of mounting parts 8 is provided on the hinge body. The mounting parts 8 penetrate the hinge body and abut against the outer wall of the connecting shaft 4 along the radial direction of the connecting shaft 4 to limit the position. In this embodiment, the mounting parts 8 are stop screws, and there are two of them. The two mounting parts 8 are respectively provided on both sides of the mounting groove 2. The connecting shaft 4 penetrates the axial holes on both sides of the fixing groove 61 to position the hinge body, and a set of mounting parts 8 are used to quickly fix the connecting shaft 4 and the hinge body to avoid axial movement or falling off of the connecting shaft 4. The way in which the mounting parts 8 lock and position the connecting shaft 4 is fast and easy to assemble. The mounting parts 8 penetrate and lock the connecting shaft 4 in the radial direction of the connecting shaft 4, and the mounting parts 8 are easy to disassemble by tools, reducing the difficulty of assembly.

[0052] Embodiment 3

[0053] This embodiment provides a door body 101, including a first component 6, a second component 7, and a hinge structure 100 connecting the first component 6 and the second component 7 as in the above embodiment.

[0054] Figure 2 This is a schematic diagram of the structure of the door body provided in Example 3 of the present application.

[0055] like Figure 2As shown, the door body 101 of this embodiment is a gull-wing door, and the first component 6 and the second component 7 are assembled into an upside-down flip-opening and closing structure. The first component 6 is a fuselage side panel, and the second component 7 is a door panel. A door 65 is provided in the first component 6, and a plurality of fixing grooves 61 are provided on the upper edge of the door 65. In this embodiment, the number of the fixing grooves 61 is two.

[0056] The second component 7 includes a frame 71, a curved portion 72 is provided on the circumferential edge of the frame 71, a door edge 73 is provided on the circumferential edge of the curved portion 72, and the door edge 73 is sealed and covered with the door 65. A hinge structure 100 is installed between the edge of the frame 71 and the fixing groove 61 to realize the upside-down opening and closing action of the second component 7 relative to the first component 6.

[0057] After the second component 7 is unlocked from the first component 6, the second component 7 is automatically elastically expanded to a certain opening angle by means of the hinge structure 100, and has good supporting performance, thereby avoiding the problem of complicated assembly and excessive weight caused by the use of additional components such as gas springs.

[0058] Embodiment 4

[0059] This embodiment provides an aircraft 102 .

[0060] Figure 1 This is a schematic front view of the aircraft provided in Example 4 of the present application.

[0061] like Figure 1 As shown, an aircraft 102 includes a door body 101 as in the above embodiment, and a hinge structure 100 is provided on the door body 101.

[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0064] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or can communicate with each other; 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 this application can be understood according to specific circumstances.

[0065] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0066] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. Hinge structure, characterized in that: It includes a hinge body, a mounting groove is provided on one side of the hinge body, a supporting portion is provided on the other side of the hinge body, a connecting shaft is provided in the mounting groove, which passes through the hinge body and is detachably fixed to the hinge body, the connecting shaft is connected to at least one elastic member, a positioning end is provided at one end of the elastic member, the positioning end extends out of the mounting groove, a fixed end is provided at the other end of the elastic member, the fixed end and the inner wall of the mounting groove are correspondingly matched and limited, the hinge structure is installed between a first component and a second component, a plurality of fixing grooves are provided on the first component, one end of the hinge structure is embedded in the fixing groove, and the other end of the hinge structure is detachably connected to the second component.

2. The hinge structure according to claim 1, characterized in that: The fixing groove has an upper groove opening facing the upper part of the first component and a side groove opening facing the side of the first component, and the upper groove opening and the side groove opening are connected to each other.

3. The hinge structure according to claim 1, characterized in that: Both ends of the connecting shaft respectively penetrate the hinge body, and both sides of the groove wall of the fixing groove are respectively provided with shaft holes corresponding to the connecting shaft.

4. The hinge structure according to claim 1, characterized in that: The second component comprises a frame, an edge of the frame is provided with an arc-shaped portion, a side of the hinge body facing away from the mounting groove is detachably connected to the frame, and the support portion abuts against the arc-shaped portion correspondingly.

5. The hinge structure according to claim 1, characterized in that: The installation slot is provided with a through opening at the end portion facing the hinge body, the elastic member is sleeved on the connecting shaft, and one end of the elastic member is positioned to the fixing slot through the through opening, and the other end of the elastic member is positioned to the slot wall of the installation slot.

6. The hinge structure according to claim 5, characterized in that: A fixing hole for positioning the elastic member is provided at the bottom of the fixing groove, the positioning end of the elastic member is plug-fitted into the fixing hole correspondingly, and the fixing end of the elastic member is butted against the groove wall of the installation groove.

7. The hinge structure according to claim 1, characterized in that: At least one set of mounting parts is arranged on the hinge body, and the mounting parts penetrate through the hinge body and abut against the outer wall of the connecting shaft.

8. Door body, characterized in that: Comprising the hinge structure as described in any one of claims 1-7.

9. An aircraft, characterized in that: Comprising the door body as claimed in claim 8.

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