Floating type cabin door rotating shaft structure and cabin door

Abstract

The floating type cabin door rotating shaft structure comprises the floating type cabin door rotating shaft structure, the cabin door, a cabin door frame and sealing pieces, the cabin door is connected with a movable door shaft seat, the cabin door frame is connected with a fixed door shaft seat, and the cabin door and the cabin door frame are correspondingly provided with the sealing pieces capable of being meshed when the cabin door is closed; the floating type cabin door rotating shaft structure comprises a movable door shaft seat, a rotating shaft assembly, a sliding block, a fixed door shaft seat and an elastic reset piece, the rotating shaft assembly is sleeved with one end of the movable door shaft seat and one end of the sliding block, and the sliding block is installed in the fixed door shaft seat in a sliding mode in the normal direction of a cabin door frame; the shaft end of the rotating shaft assembly is connected with the fixed door shaft base in a floating fit mode in the normal direction of the cabin door frame, and an elastic reset piece is arranged between the sliding block and the fixed door shaft base. In the process that the cabin door is pressed towards the door frame, the cabin door rotating shaft floats along with the cabin door, the situation that the cabin door cannot press towards the door frame and cannot compress the sealing rubber strip for sealing is avoided, and meanwhile the capacity of bearing lateral loads in the cabin door opening or closing process is achieved.

Description

Technical Field

[0001] This invention belongs to the technical field of aircraft cabin door structures, specifically relating to a floating cabin door pivot structure and cabin door. Background Technology

[0002] When spacecraft and aircraft perform missions at high altitudes or in space, the surrounding environment is often characterized by low air pressure or even a vacuum. Maintaining internal pressure within the equipment compartment is crucial, necessitating a sealed hatch. A hatch hinge mechanism mounts the hatch to the door frame, allowing it to rotate around the hinge to open and close. Sealing strips are typically installed on the edges of the hatch structure. A locking mechanism on the hatch structure presses the hatch against the door frame, compressing the sealing strip and achieving a seal. When the hatch opens laterally, the hinge mechanism must withstand the lateral load generated by the hatch's weight during opening or closing. During the pressing process, the hinge mechanism must also have a floating function to prevent obstruction of the door's compression of the sealing strip.

[0003] Therefore, in view of the problems that existing hatch structures are prone to affecting the sealing strips and have insufficient lateral load bearing capacity during opening or closing, this invention discloses a floating hatch hinge structure and hatch. Summary of the Invention

[0004] This invention discloses a floating hatch hinge structure and hatch, which enables the hatch hinge to float with the hatch during the process of the hatch pressing against the door frame, thus preventing the hatch from being unable to press against the door frame and thus failing to compress the sealing strip. At the same time, it has the ability to withstand lateral loads during the opening or closing of the hatch.

[0005] This invention is achieved through the following technical solution: A floating hatch hinge structure includes a movable hatch hinge seat, a hinge assembly, a slider, a fixed hatch hinge seat, and an elastic reset member. One end of the movable hatch hinge seat and one end of the slider are both sleeved on the outside of the hinge assembly. The slider is slidably installed inside the fixed hatch hinge seat along the normal direction of the hatch frame. The shaft end of the hinge assembly is floatingly connected to the fixed hatch hinge seat along the normal direction of the hatch frame. An elastic reset member is provided between the slider and the fixed hatch hinge seat.

[0006] To better realize the present invention, a rotation damping structure is further provided between one end of the rotating shaft assembly and the fixed door shaft seat.

[0007] To better realize the present invention, the rotation damping structure further includes a friction plate and a damping spring. The damping spring is sleeved on the end of the rotating shaft assembly. A friction plate is provided at the end of the damping spring near the fixed door shaft seat. The damping spring presses the friction plate against the side wall of the fixed door shaft seat. The damping spring is provided with a toothed structure. The rotating shaft assembly is provided with a groove that engages with the toothed structure.

[0008] To better realize the present invention, a cover is further fitted to one end of the damping spring away from the side wall of the fixed door hinge seat, one end of the damping spring abuts against the cover, and the other end of the damping spring abuts against the friction plate.

[0009] To better realize the present invention, the fixed door pivot seat further includes a fixed door pivot seat body, a limiting shaft, and a limiting shaft sleeve. The interior of the fixed door pivot seat body is provided with a sliding groove along the normal direction of the door frame, and the slider is slidably connected to the sliding groove. The fixed door pivot seat body is provided with a limiting shaft, and the limiting shaft sleeve is sleeved on the outside of the limiting shaft. The limiting shaft sleeve abuts against the end of the slider away from the sliding groove.

[0010] To better realize the present invention, further, a guide rail is provided inside the fixed door pivot body along the normal direction of the hatch frame, and the slider is slidably connected to the guide rail; a strip hole is provided on the fixed door pivot body along the normal direction of the hatch frame, and the shaft end of the rotating shaft assembly is slidably connected to the strip hole.

[0011] To better realize the present invention, the rotating shaft assembly further includes a hatch rotating shaft, a short rotating sleeve, and a long rotating sleeve. The short rotating sleeve and the long rotating sleeve are respectively sleeved at both ends of the hatch rotating shaft, and the movable door shaft seat is provided with connecting holes on both sides for engaging with the short rotating sleeve and the long rotating sleeve respectively.

[0012] To better realize the present invention, a support sleeve is further provided between the two ends of the hatch hinge, and a fastener is provided at one end of the hatch hinge to lock the short rotating sleeve and the long rotating sleeve.

[0013] A floating hatch includes a floating hatch pivot structure, a hatch, a hatch frame, and seals. The hatch is connected to a movable door pivot seat, and the hatch frame is connected to a fixed door pivot seat. Seals that can engage when the hatch is closed are correspondingly provided on the hatch and the hatch frame.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: This invention enables the hatch hinge to float along with the hatch during the pressing process against the door frame, preventing the hatch from failing to press against the door frame and thus failing to compress the sealing strip. It also possesses the ability to withstand lateral loads during hatch opening or closing and the ability to remain at any position with the hatch open in microgravity or zero gravity environments. Attached Figure Description

[0015] Figure 1 A cross-sectional view of the floating hatch hinge structure; Figure 2 A three-dimensional structural diagram of the floating hatch hinge structure; Figure 3 This is a schematic diagram showing the rotation of the movable door hinge seat relative to the fixed door hinge seat. Figure 4 This is a schematic diagram of the structure of the movable door hinge seat; Figure 5 This is a schematic diagram of the slider's structure; Figure 6 This is a schematic diagram of the structure of a fixed door hinge seat.

[0016] Wherein: 1-Movable door pivot seat; 2-Rotating shaft assembly; 3-Slider; 4-Fixed door pivot seat; 5-Rotation damping structure; 6-Elastic reset component; 21-Hatch door pivot; 22-Short rotating sleeve; 23-Support sleeve; 24-Long rotating sleeve; 25-Fastener; 41-Fixed door pivot seat body; 42-Limiting shaft; 43-Limiting shaft sleeve; 51-Friction pad; 52-Damping compression spring; 53-Baffle; 101-Groove; 301-Rotating shaft hole; 4101-Guide rail; 4102-Strip hole. Detailed Implementation

[0017] Example 1: This embodiment discloses a floating hatch hinge structure, such as Figures 1-3 As shown, the device includes a movable door hinge seat 1, a rotating shaft assembly 2, a slider 3, a fixed door hinge seat 4, and an elastic reset member 6. One end of the movable door hinge seat 1 and one end of the slider 3 are both sleeved on the outside of the rotating shaft assembly 2. The slider 3 is slidably installed inside the fixed door hinge seat 4 along the normal direction of the door frame. The shaft end of the rotating shaft assembly 2 is floatingly connected to the fixed door hinge seat 4 along the normal direction of the door frame. An elastic reset member 6 is provided between the slider 3 and the fixed door hinge seat 4.

[0018] One end of the hatch is connected to the movable door pivot 1, and the other end of the movable door pivot 1 is connected to the rotating shaft assembly 2. The rotating shaft assembly 2 passes through a rotating shaft hole provided on the slider 3. The slider 3 slides along the normal direction of the hatch frame into the interior of the fixed door pivot 4. The fixed door pivot 4 is installed on the hatch frame to realize the connection between the hatch and the hatch frame. The slider 3 can only withstand the lateral load during the opening or closing of the hatch by moving along the normal direction of the fixed door pivot 4. The shaft end of the rotating shaft assembly 2 is floatingly connected to the fixed door pivot 4 along the normal direction of the hatch frame, so that the rotating shaft assembly 2 can float relative to the fixed door pivot 4 along the normal direction of the hatch frame during the sliding process of the slider 3.

[0019] An elastic reset component 6 is provided between the slider 3 and the fixed door hinge seat 4. The elastic reset component 6 adopts a reset spring, which is used to reset the slider 3 and the pivot assembly 2 after the hatch is unlocked and during the opening process, and keep them away from the hatch frame to avoid the hatch and the hatch frame rubbing against each other and damaging the sealing strip during the opening or closing process.

[0020] A floating hatch includes a hatch hinge structure, a hatch, a hatch frame, and seals. The hatch is connected to a movable door hinge seat 1, and the hatch frame is connected to a fixed door hinge seat 4. Seals that engage when the hatch is closed are correspondingly provided on the hatch and the hatch frame. A position detection switch is also provided between the hatch and the hatch frame, and is connected to an airborne monitoring system. When the hatch and the hatch frame are fully closed, the position detection switch is triggered, closing and sending a hatch closing signal to the airborne monitoring system. When the hatch and the hatch frame are not fully closed, the position detection switch is opened, and the airborne monitoring system displays that the hatch is not closed. When the hatch and the hatch frame are fully closed, the seals on the hatch and the hatch frame are tightly engaged and pressed together by the hatch along the normal direction of the hatch frame, achieving a seal on the internal space.

[0021] Example 2: This embodiment discloses a floating hatch hinge structure, which is an optimization based on Embodiment 1, such as... Figure 1 As shown, a rotation damping structure 5 is provided between one end of the rotating shaft assembly 2 and the fixed door shaft seat 4.

[0022] Furthermore, the rotational damping structure 5 includes a friction plate 51 and a damping spring 52. The damping spring 52 is sleeved on the end of the rotating shaft assembly 2. The friction plate 51 is provided at the end of the damping spring 52 near the fixed door shaft seat 4. The damping spring 52 presses the friction plate 51 tightly against the side wall of the fixed door shaft seat 4. The damping spring 52 has a toothed structure, and the rotating shaft assembly 2 has a groove that engages with the toothed structure. A cover 53 is fitted at the end of the damping spring 52 away from the side wall of the fixed door shaft seat 4. One end of the damping spring 52 abuts against the cover 53, and the other end of the damping spring 52 abuts against the friction plate 51.

[0023] The rotating shaft assembly 2 is equipped with a rotation damping structure 5, which mainly consists of a friction plate 51, a damping spring 52, and a cover 53. The damping spring 52 presses the friction plate 51 against the side of the fixed door pivot 4, creating a certain frictional force between the friction plate 51 and the fixed door pivot 4. The damping spring 52 has a toothed structure that is embedded in a groove on the rotating shaft assembly 2. When the hatch is opened or closed, the friction plate 51 rotates synchronously with the ends of the movable door pivot 1 and the rotating shaft assembly 2. When opening or closing the hatch, the frictional force between the friction plate 51 and the fixed door pivot 4 must be overcome to achieve the function of stopping the hatch at any position in a microgravity or zero-gravity environment.

[0024] The rest of this embodiment is the same as that of Embodiment 1, so it will not be described again.

[0025] Example 3: This embodiment discloses a floating hatch hinge structure, which is an optimization based on embodiment 1 or 2, such as... Figure 1 and Figure 6 As shown, the fixed door pivot seat 4 includes a fixed door pivot seat body 41, a limiting shaft 42, and a limiting shaft sleeve 43. The interior of the fixed door pivot seat body 41 has a sliding groove along the normal direction of the hatch frame, and the slider 3 is slidably connected to the sliding groove. The fixed door pivot seat body 41 is provided with a limiting shaft 42, and a limiting shaft sleeve 43 is fitted around the limiting shaft 42. The limiting shaft sleeve 43 abuts against the end of the slider 3 away from the sliding groove. The interior of the fixed door pivot seat body 41 has a guide rail 4101 along the normal direction of the hatch frame, and the slider 3 is slidably connected to the guide rail 4101. The fixed door pivot seat body 41 has a strip-shaped hole 4102 along the normal direction of the hatch frame, and the shaft end of the rotating shaft assembly 2 is slidably connected to the strip-shaped hole 4102.

[0026] The fixed door pivot seat 4 mainly consists of a fixed door pivot seat body 41, a limiting shaft 42, a limiting shaft sleeve 43, and a limiting shaft fastener 44. Inside the fixed door pivot seat body 41, a guide rail 4101 is arranged along the normal direction of the hatch frame. The slider 3 can be inserted into the guide rail 4101 and slide within it. The slider 3 can only slide within the guide rail 4101, and is capable of withstanding lateral loads during hatch opening or closing. The limiting shaft 42 and the limiting shaft sleeve 43 are used to limit the sliding stroke of the slider 3. A slotted hole 4102 is provided on the fixed door pivot seat body 41. The direction of the slotted hole 4102 is consistent with the direction of the guide rail 4101. The rotating shaft assembly 2 can float along the direction of the slotted hole 4102 with the slider 3, realizing the floating function of the rotating shaft assembly 2.

[0027] The rest of this embodiment is the same as that of embodiment 1 or 2, so it will not be described again.

[0028] Example 4: This embodiment discloses a floating hatch hinge structure, which is an optimization based on any one of embodiments 1-3, such as... Figure 1 As shown, the rotating shaft assembly 2 includes a hatch rotating shaft 21, a short rotating sleeve 22, and a long rotating sleeve 24. The short rotating sleeve 22 and the long rotating sleeve 24 are respectively fitted onto both ends of the hatch rotating shaft 21. Connecting holes are provided on both sides of the movable door shaft seat 1 to engage with the short rotating sleeve 22 and the long rotating sleeve 24, respectively. A support sleeve 23 is fitted between the two ends of the hatch rotating shaft 21, and a fastener 25 is provided at one end of the hatch rotating shaft 21 to lock the short rotating sleeve 22 and the long rotating sleeve 24.

[0029] like Figure 1 and Figure 4 As shown, the rotating shaft assembly 2 mainly consists of a hatch rotating shaft 21, a short rotating sleeve 22, a support sleeve 23, a long rotating sleeve 24, and fasteners 25. The short rotating sleeve 22, support sleeve 23, and long rotating sleeve 24 are fitted onto the hatch rotating shaft 21, clamping the movable door shaft seat 1. The short rotating sleeve 22 and long rotating sleeve 24 have boss structures that embed into the grooves 101 of the movable door shaft seat 1, allowing the movable door shaft seat 1 to drive the short rotating sleeve 22 and long rotating sleeve 24 to rotate synchronously. The ends are fixed with fasteners 25. Figure 5 As shown, the slider 3 is provided with a pivot hole 301. The pivot assembly 2 passes through the pivot hole provided on the slider 3 and can rotate within the pivot hole 301, thereby realizing the rotation of the pivot assembly 2.

[0030] The rest of this embodiment is the same as any one of embodiments 1-3, so it will not be described again.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A floating door hinge structure, characterized by, The utility model provides a door hinge, including movable door hinge seat (1), pivot assembly (2), sliding block (3), fixed door hinge seat (4), elastic reset piece (6), one end of movable door hinge seat (1) and the one end of sliding block (3) are all set in the outside of pivot assembly (2), sliding block (3) is installed in fixed door hinge seat (4) inside along the normal of hatch door frame, the shaft end of pivot assembly (2) and fixed door hinge seat (4) along the normal of hatch door frame floating cooperation connection, elastic reset piece (6) is arranged between sliding block (3) and fixed door hinge seat (4).

2. A floating hatchway pivot structure according to claim 1, wherein Rotary damping structure (5) is arranged between one end of pivot assembly (2) and fixed door hinge seat (4).

3. A floating hatchway pivot structure according to claim 2, wherein Rotary damping structure (5) includes friction plate (51), damping compression spring (52), the damping compression spring (52) is set in the end of pivot assembly (2), the one end close to fixed door hinge seat (4) of damping compression spring (52) is provided with friction plate (51), the damping compression spring (52) is pressed in the side wall of fixed door hinge seat (4) with friction plate (51), the damping compression spring (52) is provided with the toothing structure, pivot assembly (2) is provided with the embedded groove of corresponding clamping with toothing structure.

4. A floating hatchway pivot structure according to claim 3, wherein The one end of damping compression spring (52) away from the side wall of fixed door hinge seat (4) is clamped with cover (53), the one end of damping compression spring (52) is in abutment with cover (53), the other end of damping compression spring (52) is in abutment with friction plate (51).

5. A floating hatchway pivot structure according to any one of claims 1-4, characterized in that Fixed door hinge seat (4) includes fixed door hinge seat body (41), limiting shaft (42), limiting shaft sleeve (43), the inside of fixed door hinge seat body (41) is provided with sliding groove along the normal of hatch door frame, and sliding block (3) is slidably connected with the sliding groove, limiting shaft (42) is arranged on fixed door hinge seat body (41), limiting shaft sleeve (43) is arranged on the outside of limiting shaft (42), and limiting shaft sleeve (43) is in abutment with the one end of sliding block (3) away from the sliding groove.

6. A floating hatchway pivot structure according to claim 5, wherein The inside of fixed door hinge seat body (41) is provided with guide rail (4101) along the normal of hatch door frame, and sliding block (3) is slidably connected with guide rail (4101); strip-shaped hole (4102) is arranged on fixed door hinge seat body (41) along the normal of hatch door frame, and the shaft end of pivot assembly (2) is slidably connected with strip-shaped hole (4102).

7. A floating hatchway pivot structure according to any one of claims 1-4, characterized in that Pivot assembly (2) includes hatch door pivot (21), short rotary sleeve (22), long rotary sleeve (24), both ends of hatch door pivot (21) are respectively provided with short rotary sleeve (22) and long rotary sleeve (24), and both sides of movable door hinge seat (1) are provided with connecting holes respectively clamped with short rotary sleeve (22) and long rotary sleeve (24).

8. A floating hatchway pivot structure according to any one of claims 1-4, characterized in that Support sleeve (23) is arranged between both ends of hatch door pivot (21), and one end of hatch door pivot (21) is provided with fastener (25) for locking short rotary sleeve (22) and long rotary sleeve (24).

9. A floating door comprising the floating door hinge structure according to any one of claims 1 to 8, characterized in that, The door, the door frame and the sealing element are further included, the door is connected with the movable door shaft seat (1), the door frame is connected with the fixed door shaft seat (4), and the door and the door frame are provided with the sealing element capable of being engaged when the door is closed.

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