Mechanism capable of automatically rebounding and aircraft folding door

Abstract

The invention provides an automatic springback mechanism and an aircraft folding door, and belongs to the technical field of aviation technology living facility systems.The plug in the automatic springback mechanism is provided with a hole and connected with one end of an elastic piece in a limiting pipe, the other end of the elastic piece is connected with a steel cable, and the steel cable connects the limiting pipe with a shifting seat through a second rolling wheel; the shifting seat is arranged on the folding door; the first roller carrier fixes a first roller; the second roller is erected on a guide rail above the folding door and is fixed; the steel cable penetrates through the limiting pipe, and the stress direction is changed through the first roller and the second roller. When the folding door is opened, the shifting seat moves towards the door closing direction, the steel cable stretches the elastic piece, the elastic piece overcomes the stretching force of the spring and generates downward pulling force on the steel cable, the shifting seat returns to the initial position when the folding door is closed through the first roller and the second roller, and the folding door is driven to be closed. According to the invention, waste gas in the toilet can be prevented from being discharged into the cabin when the folding door of the toilet is not closed in place, and the comfort of personnel on board can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation technical living facility system design, and in particular relates to an automatic rebound mechanism and an aircraft folding door. Background Art

[0002] When transporting wounded soldiers or soldiers, transport aircraft need to solve the physiological problems of the people on board, so toilets and other facilities need to be set up on the aircraft to meet the physiological needs of the personnel.

[0003] At present, the sanitation system installed on the aircraft is a vacuum sanitation system. In order to increase the space for personnel use and not affect the passage of other personnel, the toilet door is designed to be a folding door that pushes inward. When personnel use the toilet or leave the toilet, if the toilet door is forgotten to be closed or not closed tightly, the toilet exhaust gas will be discharged into the cabin, affecting the comfort of the personnel on board.

[0004] In order to cope with this situation, it is necessary to provide an automatic rebound mechanism of a purely mechanical device, which is installed on the folding door of the bathroom to ensure the automatic closing of the folding door of the bathroom. Summary of the invention

[0005] In order to solve the technical problem that the inward-pushing folding door in the prior art may cause the waste gas from the toilet to be discharged into the cabin, the present invention provides an automatic rebound mechanism and an aircraft folding door, which can prevent the folding door from being not fully closed when the passengers are using the toilet or finishing using the toilet, thereby improving the comfort of the passengers. The technical solution is as follows:

[0006] In a first aspect, an automatic rebound mechanism is provided, comprising: a limit tube, an elastic member, a steel cable, a first roller, a second roller, a first roller frame, a second roller frame, an upper guide rail, a shifting seat, and a plug;

[0007] Among them, the limiting tube is fixed on the structural profile, the plug is located at the lower end surface of the limiting tube, the plug has a hole and is connected to one end of the elastic part in the limiting tube, the other end of the elastic part is connected to the steel cable, the steel cable connects the limiting tube and the shift seat through the second roller, and the shift seat is arranged on the folding door; the first roller frame serves as a roller bracket to fix the first roller; the second roller frame is arranged on the upper guide rail above the folding door to fix the second roller; the steel cable passes through the limiting tube and changes its force direction through the first roller and the second roller.

[0008] In one implementation, when the folding door is opened, the shift seat moves in the direction of door closing, stretching the elastic member through the steel cable. In order to overcome the spring tension force, the elastic member generates a downward pulling force on the steel cable. Through the first roller and the second roller, the shift seat returns to the initial position when the folding door is closed, driving the folding door to close.

[0009] Optionally, the elastic member is a spring.

[0010] Optionally, the limiting tube is fixed to the structural profile by a clamp.

[0011] Optionally, the clamp is glued to the limiting tube.

[0012] Optionally, the limiting tube and the clamp are made of steel.

[0013] Optionally, a plurality of clamps are provided.

[0014] In a second aspect, there is provided an aircraft folding door equipped with any one of the automatic rebound mechanisms described in the first aspect.

[0015] The beneficial effects of the present invention are at least:

[0016] The invention provides an automatic rebound mechanism, comprising: a limiting tube, an elastic member, a steel cable, a first roller, a second roller, a first roller frame, a second roller frame, an upper guide rail, a shifting seat, and a plug; the limiting tube is fixed on the structural profile, the plug is located at the lower end surface of the limiting tube, a hole is opened on the plug and is connected to one end of the elastic member in the limiting tube, and the other end of the elastic member is connected to the steel cable, the steel cable connects the limiting tube and the shifting seat through the second roller, and the shifting seat is arranged on the folding door; the first roller frame serves as a roller bracket to fix the first roller; the second roller frame is arranged on the upper guide rail above the folding door to fix the second roller; the steel cable passes through the limiting tube and changes its force direction through the first roller and the second roller; when the folding door is opened, the shifting seat moves in the door closing direction, and the elastic member is stretched through the steel cable, and the elastic member generates a downward pulling force on the steel cable to overcome the stretching force of the spring, and the shifting seat is restored to the initial position when the folding door is closed through the first roller and the second roller, thereby driving the folding door to close. The present invention can realize automatic closing of the folding door after it is opened, and can prevent the folding door of the toilet from being not fully closed so that the waste gas of the toilet is discharged into the cabin, thereby improving the comfort of the passengers on board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of an automatic rebound mechanism for a folding door;

[0018] Figure 2 This is the assembly drawing of the spring.

[0019] Among them: 1-limiting tube, 2-clamp, 3-spring, 4-steel cable, 51-first roller, 52-second roller, 61-first roller frame, 62-second roller frame, 7-upper guide rail, 8-dial seat, 9-plug. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below through specific implementation modes and drawings.

[0021] One embodiment of the present invention provides an automatic rebound mechanism for an aircraft folding door, see Figure 1The mechanism includes: a limit tube 1, a spring 3, a steel cable 4, a first roller 51, a second roller 52, a first roller frame 61, a second roller frame 62, an upper guide rail 7, a shifting seat 8, and a plug 9;

[0022] The upper guide rail 7 is fixed on the upper direction of the folding door, the upper guide rail 7 limits the steel cable 4 and provides an installation position for the second roller frame 62;

[0023] The limiting tube 1 is fixed on the structural profile, and the plug 9 is installed on the lower end surface of the limiting tube 1 . The plug 9 has a hole and is connected to one end of the spring 3 in the limiting tube 1 .

[0024] The spring 3 is the main functional component of the automatic rebound mechanism. One end of the spring 3 is fixedly connected to the plug 9 in the limit tube 1, and the other end is connected to the steel cable 4. Figure 2 ;

[0025] The steel cable 4 connects the limiting tube 1 and the shifting seat 8 through the second roller 52, and the second roller 52 serves as a steel cable steering mechanism; the steel cable 4 passes through the limiting tube 1, and changes its force direction through the first roller 51 and the second roller 52, each roller is installed on a roller frame, and the first roller frame 61 is installed on the structural profile, and the first roller frame 61 serves as a roller bracket for fixing the first roller 51; the second roller frame 62 is installed on the upper guide rail 7 above the folding door, and is used to fix the second roller 52; the steel cable 4 is installed on the folding door through the shifting seat 8.

[0026] When the folding door is opened, the seat 8 will move in the direction of closing the door, stretching the spring 3 through the steel cable 4. In order to overcome the spring stretching force, the spring 3 will generate a downward pulling force on the steel cable 4, and through the two rollers, the seat 8 will return to the initial position when the folding door is closed, driving the folding door to close, so that the folding door can automatically rebound and close.

[0027] An embodiment of the present invention provides an automatic rebound mechanism for a folding door, comprising a limit tube 1, three clamps 2, a spring 3, a steel cable 4, a first roller 51, a second roller 52, a first roller frame 61, a second roller frame 62, an upper guide rail 7, a shifting seat 8, and a plug 9;

[0028] The material of the limiting tube 1 is No. 20 steel and is used to limit the spring 3;

[0029] The material of the clamp 2 is No. 20 steel and is glued to the limit tube 1;

[0030] The spring 3 is the main functional component of the automatic rebound mechanism. One end of the spring 3 is fixedly connected to the plug 9 in the limit tube 1, and the other end is connected to the steel cable 4. Figure 2 ;

[0031] The steel cable 4 connects the limit tube 1 and the shifting seat 8 via the second roller 52; the second roller 52 serves as a steel cable steering mechanism;

[0032] The first roller frame 61 is used as a roller bracket, fixed on the structural profile, and is used to fix the first roller 51;

[0033] The upper guide rail 7 is fixed above the folding door, and the upper guide rail 7 limits the steel cable 4 and provides an installation position for the second roller frame 62;

[0034] Specifically, the limiting tube 1 is fixed to the structural profile by three clamps 2, the plug 9 is installed on the lower end surface of the limiting tube 1, the plug 9 has a hole and is connected to one end of the spring 3 in the limiting tube 1, and the other end of the spring 3 is connected to the steel cable 4; the steel cable 4 connects the limiting tube 1 and the shift seat 8 through the second roller 52, the steel cable 4 passes through the limiting tube 1, and its force direction is changed by the first roller 51 and the second roller 52, each roller is installed on a roller frame, the first roller frame 61 is installed on the structural profile, and the second roller frame 62 is installed on the upper guide rail 7 above the folding door; the steel cable 4 is installed on the folding door through the shift seat 8.

[0035] In this embodiment, when the folding door is opened, the shifting seat 8 will move in the direction of closing the door, stretching the spring 3 through the steel cable 4. In order to overcome the spring stretching force, the spring 3 will generate a downward pulling force on the steel cable 4, and through two rollers, the shifting seat 8 will return to the initial position when the folding door is closed, driving the folding door to close, so as to achieve the purpose of automatic rebound and automatic closing of the folding door.

[0036] An embodiment of the present invention further provides an aircraft folding door, comprising the automatic rebound mechanism provided in an embodiment of the present invention, such as Figure 1 shown.

[0037] In summary, the present invention can realize automatic closing of the folding door after it is opened, which can prevent the folding door of the toilet from being not fully closed so that the toilet exhaust gas is discharged into the cabin, thereby improving the comfort of the passengers on board.

[0038] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. In addition, the parts not detailed in the present invention are all conventional technologies.

Claims

1. An automatic rebound mechanism, characterized in that: include: Limiting tube, elastic member, steel cable, first roller, second roller, first roller frame, second roller frame, upper guide rail, shifting seat, plug; Among them, the limiting tube is fixed on the structural profile, the plug is located at the lower end surface of the limiting tube, the plug has a hole and is connected to one end of the elastic part in the limiting tube, the other end of the elastic part is connected to the steel cable, the steel cable connects the limiting tube and the shift seat through the second roller, and the shift seat is arranged on the folding door; the first roller frame serves as a roller bracket to fix the first roller; the second roller frame is arranged on the upper guide rail above the folding door to fix the second roller; the steel cable passes through the limiting tube and changes its force direction through the first roller and the second roller.

2. The automatic rebound mechanism according to claim 1, characterized in that: When the folding door is opened, the push seat moves in the direction of door closing, and the elastic member is stretched through the steel cable. In order to overcome the spring tension, the elastic member generates a downward pulling force on the steel cable. Through the first roller and the second roller, the push seat returns to the initial position when the folding door is closed, driving the folding door to close.

3. The automatic rebound mechanism according to claim 1, characterized in that: The elastic member is a spring.

4. The automatic rebound mechanism according to claim 1, characterized in that: The limiting tube is fixed to the structural profile by means of a clamp.

5. The automatic rebound mechanism according to claim 4, characterized in that: The clamp is glued to the limiting pipe.

6. The automatic rebound mechanism according to claim 4, characterized in that: The material of the limit tube and the clamp is steel.

7. The automatic rebound mechanism according to claim 4, characterized in that: A plurality of clamps are provided.

8. An aircraft folding door, characterized in that: An automatic rebound mechanism as claimed in any one of claims 1 to 7 is installed.

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