Aircraft lavatory concealed trash bin door lock
By designing a concealed trash can door lock, the problems of traditional locks lacking concealment and stability are solved, thereby improving security and durability. This design is suitable for trash can door locks in aircraft lavatories.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FESHER AVIATION COMPONENTS ZHENJIANG
- Filing Date
- 2023-09-12
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional aircraft lavatory trash can door locks lack concealment, making them easy for passengers to open, posing a safety hazard. They also struggle to maintain stability and durability under various aircraft load conditions.
A concealed trash can door lock was designed, comprising a locking mechanism, an upper support mechanism, a linkage mechanism, and an opening mechanism. The locking mechanism is driven by the linkage mechanism to separate or connect with the upper support mechanism, thereby achieving concealed opening and locking and enhancing security and stability.
It achieves concealed opening of the trash can door, reducing safety hazards and improving safety and durability, and can maintain the stability and reliability of the door lock under various aircraft load conditions.
Smart Images
Figure CN117365210B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of door lock technology, and in particular to a concealed trash can door lock for an aircraft lavatory. Background Technology
[0002] In the confined space of a civilian aircraft lavatory, there is a washbasin with complex and multifunctional features. The trash can door is located below the washbasin. In order to withstand flight loads, ground loads, and emergency landing loads, the trash can door and the washbasin structure must be firmly installed to prevent the trash can door from opening automatically. Since the trash can needs to be cleaned frequently, the trash can door also needs to be opened frequently. Its door lock structure must be reliable and durable. On the basis of reliability and durability, in order to allow staff to open the trash can door easily, while preventing passengers from easily opening the trash can door and causing safety hazards, traditional trash can door locks are not concealed, allowing passengers to accidentally open the trash can door. Summary of the Invention
[0003] Purpose of the invention: The present invention provides a concealed trash can door lock for aircraft lavatories that is concealed, can withstand various aircraft load conditions, and is easy to install and open.
[0004] Technical Solution: A concealed trash can door lock for an aircraft lavatory includes a locking mechanism, an upper support mechanism, a linkage mechanism, and an opening mechanism. The locking mechanism is located on the upper end of the linkage mechanism and rotatably connected thereto. The upper support mechanism is connected to the locking mechanism. The opening mechanism is located on the lower end of the linkage mechanism and is securely connected thereto. Both the locking mechanism and the linkage mechanism are installed on the inner side of the trash can door. The upper support mechanism is installed on the trash can shell at the corresponding position of the locking mechanism. The opening mechanism is located on the bottom side of the trash can door. Pulling the opening mechanism causes the locking mechanism to work through the linkage mechanism, causing the locking mechanism and the upper support mechanism to separate and complete the opening operation. Closing the trash can door locks the locking mechanism and the upper support mechanism together.
[0005] Furthermore, the locking mechanism includes a fixed bracket, a return spring, and an upper opening hook. The fixed bracket is installed on the outer edge of the inner side of the garbage bin door. The upper end of the linkage mechanism is located inside the fixed bracket and rotatably connected thereto. The upper opening hook is sleeved on the upper end of the linkage mechanism and fixedly connected thereto. The return spring is sleeved on the linkage mechanism and is used to rotate the upper opening hook to return to its original position. The upper opening hook is connected to the upper bracket mechanism.
[0006] Furthermore, a polygonal connecting block is provided on the upper end face of the linkage mechanism, and a polygonal connecting hole is provided on the upper opening hook. The polygonal connecting block and the polygonal connecting hole are polygons with the same number of sides. The upper opening hook is provided on the polygonal connecting block through the polygonal connecting hole. The return spring is provided on the polygonal connecting block and is located above the upper opening hook. One end of the return spring is connected to the fixed bracket, and the other end is connected to the upper opening hook.
[0007] Furthermore, the upper support mechanism includes a locking hook frame and an upper adapter frame. The locking hook frame and the upper adapter frame are fastened together. The locking hook frame is connected to the locking mechanism. The upper adapter frame is installed on the trash can shell at the corresponding position of the locking mechanism. The upper adapter frame makes the installation of the locking hook frame convenient.
[0008] Furthermore, the linkage mechanism includes a rotating rod and a linkage fixing frame. The linkage fixing frame is installed on the outer edge of the inner side of the garbage bin door. The linkage fixing frame is provided with a fixing frame hole. The rotating rod is disposed in the fixing frame hole and movably connected thereto. The upper end of the rotating rod is rotatably connected to the locking mechanism, and the lower end of the rotating rod is fastened to the opening mechanism.
[0009] Furthermore, the connecting rod fixing bracket is located in the lower half of the rotating rod, which improves the stability of the rotating rod.
[0010] Furthermore, the rotating rod includes a connector, a limiting head, and a connecting rod. The connecting rod is disposed within and movably connected to the hole in the fixing frame. The lower end of the connecting rod has a polygonal protrusion. The opening mechanism has a polygonal fixing hole. The polygonal fixing hole and the polygonal protrusion are polygons with the same number of sides. The polygonal protrusion is disposed within the polygonal fixing hole. The limiting head is disposed within the polygonal protrusion and threadedly connected to it. The upper end face of the connecting rod has the connector threadedly connected to it. The connector is rotatably connected to the locking mechanism.
[0011] Furthermore, the opening mechanism is an opening handle.
[0012] Furthermore, the opening mechanism includes a lower opening hook and a lower support mechanism. The lower opening hook is located at the lower end of the linkage mechanism and is fastened to it. The lower opening hook is located on the bottom side of the garbage bin door. The lower support mechanism is installed on the garbage bin shell at the position corresponding to the lower opening hook. The lower opening hook and the lower support mechanism are connected.
[0013] Furthermore, the lower support mechanism includes a lower locking hook frame and a lower adapter frame. The lower locking hook frame and the lower adapter frame are fastened together. The lower adapter frame is installed on the trash can shell at the position corresponding to the lower opening hook. The lower opening hook and the lower locking hook frame are connected. The lower adapter frame makes the installation of the lower locking hook frame convenient.
[0014] Beneficial effects: The advantages of this invention are that by setting the opening mechanism on the bottom side of the trash can door, the entire door lock is hidden, reducing safety hazards and improving safety. The locking mechanism and the upper support mechanism are firmly connected and locked to meet various load conditions on the aircraft, preventing the door lock from opening automatically, improving safety and durability. The lower support mechanism makes the door lock locking more secure and stable. Attached Figure Description
[0015] Figure 1 This is a breakdown diagram of the door lock;
[0016] Figure 2 A schematic diagram of the locking mechanism, upper support mechanism, and linkage mechanism;
[0017] Figure 3 This is a schematic diagram of the linkage mechanism and the opening mechanism. Detailed Implementation
[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.
[0019] A type of concealed trash can door lock in an aircraft lavatory, such as Figures 1 to 3 As shown, the system includes a locking mechanism 1, an upper support mechanism 2, a linkage mechanism 3, and an opening mechanism 4. The locking mechanism 1 is located on the upper end of the linkage mechanism 3 and is rotatably connected to it. This means that the locking mechanism 1 and the linkage mechanism 3 can rotate relative to each other; that is, the rotation of the linkage mechanism 3 causes the locking mechanism 1 to operate. The upper support mechanism 2 is connected to the locking mechanism 1, meaning that the upper support mechanism 2 and the locking mechanism 1 have a matching relationship. The opening mechanism 4 is located on the lower end of the linkage mechanism 3 and is fastened to it. This means that the opening mechanism 4 and the linkage mechanism 3 are linked; that is, the rotation angle of the opening mechanism 4 is the same as the rotation angle of the linkage mechanism 3. Both the locking mechanism 1 and the linkage mechanism 3 are equipped with... On the inside of the trash can door, the upper support mechanism 2 is installed on the trash can shell at the corresponding position of the locking mechanism 1. It can be understood as a fixed trash can shell under the sink. The locking mechanism 1 is installed on the trash can door, and the upper support mechanism 2 is installed on the trash can shell. The locking mechanism 1 and the upper support mechanism 2 can be connected to lock the trash can door. The opening mechanism 4 is located at the bottom of the trash can door. At this time, the opening mechanism 4 is hidden in a place that is not easily discovered. The way to use it is to pull the opening mechanism 4, which drives the locking mechanism 1 to work through the linkage mechanism 3, so that the locking mechanism 1 and the upper support mechanism 2 are separated to open the trash can door. When the trash can door is closed, the locking mechanism 1 and the upper support mechanism 2 are connected and locked.
[0020] The locking mechanism 1 includes a fixed bracket 11, a return spring 12, and an upper opening hook 13. The fixed bracket 11 is installed on the outer edge of the inner side of the garbage bin door, and its purpose is to make opening easier. The upper end of the linkage mechanism 3 is located inside the fixed bracket 11 and is rotatably connected to it. It can be understood that the upper bracket mechanism 2 and the fixed bracket 11 can rotate relative to each other, that is, the rotation of the upper bracket mechanism 2 can drive the fixed bracket 11 to work. The upper opening hook 13 is sleeved on the upper end of the linkage mechanism 3 and is fixedly connected to it. It can be understood that the rotation of the linkage mechanism 3 drives the upper opening hook 13 to rotate, that is, the rotation angle of the linkage mechanism 3 and the upper opening hook 13 is the same. The return spring 12 is sleeved on the linkage mechanism 3. The return spring 12 is used to make the upper opening hook 13 rotate and return to its original position. The upper opening hook 13 is connected to the upper bracket mechanism 2.
[0021] A polygonal connecting block 31 is provided on the upper surface of the linkage mechanism 3, and a polygonal connecting hole 14 is provided on the upper opening hook 13. The polygonal connecting block 31 and the polygonal connecting hole 14 are polygons with the same number of sides. The upper opening hook 13 is set on the polygonal connecting block 31 through the polygonal connecting hole 14. The return spring 12 is set on the polygonal connecting block 31. The return spring 12 is located above the upper opening hook 13. The purpose of setting it above the opening hook is to prevent the opening hook from affecting the return spring 12. One end of the return spring 12 is connected to the fixed bracket 11, and the other end is connected to the upper opening hook 13. It can be understood that one end of the return spring 12 is stuck on the fixed bracket 11, and the other end is stuck on the upper opening hook 13. When the upper opening hook 13 is opened and rotated, the return spring 12 is twisted. After opening, the return spring 12 can twist the upper opening hook 13 back to its original position and drive the linkage mechanism 3 to reset. This mechanism enables the door lock to have an automatic closing function.
[0022] The upper support mechanism 2 includes a locking hook frame 21 and an upper adapter frame 22. The locking hook frame 21 and the upper adapter frame 22 are fastened together. The locking hook frame 21 is docked with the locking mechanism 1. The docking can be understood as a matching relationship between the locking hook frame 21 and the locking mechanism 1. The upper adapter frame 22 is installed on the garbage can shell at the corresponding position of the locking mechanism 1.
[0023] The linkage mechanism 3 includes a rotating rod 32 and a linkage fixing bracket 33. The linkage fixing bracket 33 is installed on the outer edge of the inner side of the garbage bin door. It can be understood that after the linkage fixing bracket 33 is installed, the entire door lock is vertically installed on the outer edge of the inner side of the garbage bin door. The linkage fixing bracket 33 is provided with a fixing bracket hole 34. The rotating rod 32 is located in the fixing bracket hole 34 and is movably connected to it. The movable connection can be understood as the rotating rod 32 being able to rotate and move up and down in the fixing bracket hole 34. The upper end of the rotating rod 32 is rotatably connected to the locking mechanism 1, and the lower end of the rotating rod 32 is fastened to the opening mechanism 4. The linkage fixing bracket 33 is located in the lower half of the rotating rod 32. The function of setting it in the lower half of the rotating rod 32 is to fix it in the upper and lower positions, so that the rotating rod 32 is fixed more stably.
[0024] The rotating rod 32 includes a connector 35, a limiting head 36, and a connecting rod 37. The connecting rod 37 is located in and movably connected to the fixing bracket hole 34. The lower end of the connecting rod 37 is provided with a polygonal protrusion 38. The opening mechanism 4 is provided with a polygonal fixing hole 41. The polygonal fixing hole 41 and the polygonal protrusion 38 are polygons with the same number of sides. A polygon refers to a shape with more than three sides. The polygonal protrusion 38 is located in the polygonal fixing hole 41. The limiting head 36 is located in the polygonal protrusion 38 and is threadedly connected to it. The function of the limiting head 36 is to support and fix the opening mechanism 4 to prevent it from falling down. The upper end face of the connecting rod 37 is provided with a connector 35 that is threadedly connected to it. The connector 35 is rotatably connected to the locking mechanism 1. The connecting rod 37 is installed from above the locking mechanism 1 and threadedly connected to it to prevent the connecting rod 37 from falling off the locking mechanism 1.
[0025] One option for the opening mechanism 4 is an opening handle. Since the trash can door is already equipped with a locking mechanism 1 and an upper support mechanism 2 to lock the trash can door, the opening mechanism 4 does not need to be set with a locking function to complete the corresponding door lock function. In this case, the opening mechanism 4 is a hidden door lock start handle mechanism.
[0026] The second option for the opening mechanism 4 includes a lower opening hook 42 and a lower support mechanism 43. The lower opening hook 42 is located at the lower end of the linkage mechanism 3 and is fastened to it. It can be understood that the lower opening hook 42 is sleeved on the lower end of the linkage mechanism 3 and then the lower opening hook 42 is fixed to the lower end of the linkage mechanism 3 by the limiting head 36. The lower opening hook 42 is located on the bottom side of the garbage bin door. The lower support mechanism 43 is installed on the garbage bin shell at the corresponding position of the lower opening hook 42. The lower opening hook 42 and the lower support mechanism 43 are connected. This structure makes the locking more secure and stable by setting two locking positions on the garbage bin door, respectively in the upper middle and lower part of the garbage bin door.
[0027] The lower support mechanism 43 includes a lower locking hook frame 44 and a lower adapter frame 45. The lower locking hook frame 44 and the lower adapter frame 45 are fastened together. This means that the lower locking hook frame 44 and the lower adapter frame 45 are easy to disassemble and replace later. The lower adapter frame 45 is installed on the trash can shell at the corresponding position of the lower opening hook 42. The lower opening hook 42 and the lower locking hook frame 44 are connected. This means that the lower opening hook 42 and the lower locking hook frame 44 can be used together and have a door lock function.
[0028] The operation and principle of the trash can door lock are as follows: the locking mechanism 1 and the linkage mechanism 3 are both installed on the inner edge of the trash can door. The upper bracket mechanism 2 is installed on the trash can shell at the corresponding position of the locking mechanism 1. The opening mechanism 4 is located at the bottom of the trash can door. Pulling the opening mechanism 4 drives the locking mechanism 1 through the linkage mechanism 3, causing the locking mechanism 1 and the upper bracket mechanism 2 to separate and complete the opening operation. When the trash can door is closed, the locking mechanism 1 and the upper bracket mechanism 2 engage and lock. By setting the opening mechanism at the bottom of the trash can door, the entire door lock is hidden, reducing safety hazards and improving security. The locking mechanism and the upper bracket mechanism are firmly engaged and locked to meet various load conditions on the aircraft, preventing the door lock from opening automatically, improving safety and durability. The lower bracket mechanism makes the door lock more secure and stable.
Claims
1. An aircraft lavatory hidden trashcan door lock, characterized by, The device includes a locking mechanism (1), an upper support mechanism (2), a linkage mechanism (3), and an opening mechanism (4). The locking mechanism (1) is located on the upper end of the linkage mechanism (3) and is rotatably connected to it. The upper support mechanism (2) is connected to the locking mechanism (1). The opening mechanism (4) is located on the lower end of the linkage mechanism (3) and is fastened to it. The locking mechanism (1) and the linkage mechanism (3) are both installed on the inside of the garbage bin door. The upper support mechanism (2) is installed on the garbage bin shell at the corresponding position of the locking mechanism (1). The opening mechanism (4) is located on the bottom side of the garbage bin door. Pulling the opening mechanism (4) will drive the locking mechanism (1) to work through the linkage mechanism (3), so that the locking mechanism (1) and the upper support mechanism (2) are separated to complete the opening work. When the garbage bin door is closed, the locking mechanism (1) and the upper support mechanism (2) are connected and locked.
2. An aircraft lavatory concealment bin door lock as defined in claim 1, wherein, The locking mechanism (1) includes a fixed bracket (11), a return spring (12), and an upper opening hook (13). The fixed bracket (11) is installed on the outer edge of the inner side of the garbage bin door. The upper end of the linkage mechanism (3) is located inside the fixed bracket (11) and is rotatably connected to it. The upper opening hook (13) is sleeved on the upper end of the linkage mechanism (3) and is fixedly connected to it. The return spring (12) is sleeved on the linkage mechanism (3). The return spring (12) is used to rotate the upper opening hook (13) to reset. The upper opening hook (13) and the upper bracket mechanism (2) are connected.
3. An aircraft lavatory concealment bin door lock as defined in claim 2, wherein, The upper end face of the linkage mechanism (3) is provided with a polygonal connecting block (31), and the upper opening hook (13) is provided with a polygonal connecting hole (14). The polygonal connecting block (31) and the polygonal connecting hole (14) are polygons with the same number of sides. The upper opening hook (13) is provided on the polygonal connecting block (31) through the polygonal connecting hole (14). The reset spring (12) is provided on the polygonal connecting block (31). The reset spring (12) is located above the upper opening hook (13). One end of the reset spring (12) is connected to the fixed bracket (11), and the other end is connected to the upper opening hook (13).
4. An aircraft lavatory concealment bin door lock as defined in claim 1, wherein, The upper support mechanism (2) includes an upper locking hook frame (21) and an upper adapter frame (22). The upper locking hook frame (21) and the upper adapter frame (22) are fastened together. The upper locking hook frame (21) is connected to the locking mechanism (1). The upper adapter frame (22) is installed on the garbage can shell at the corresponding position of the locking mechanism (1).
5. A concealed trash can door lock for an aircraft lavatory according to claim 1, characterized in that, The linkage mechanism (3) includes a rotating rod (32) and a linkage fixing frame (33). The linkage fixing frame (33) is installed on the outer edge of the inner side of the garbage bin door. The linkage fixing frame (33) is provided with a fixing frame hole (34). The rotating rod (32) is located in the fixing frame hole (34) and is movably connected thereto. The upper end of the rotating rod (32) is rotatably connected to the locking mechanism (1), and the lower end of the rotating rod (32) is fastened to the opening mechanism (4).
6. A concealed trash can door lock for an aircraft lavatory according to claim 5, characterized in that, The connecting rod fixing bracket (33) is located in the lower half of the rotating rod (32).
7. A concealed trash can door lock for an aircraft lavatory according to claim 5, characterized in that, The rotating rod (32) includes a connector (35), a limiting head (36), and a connecting rod (37). The connecting rod (37) is located in the fixing hole (34) and is movably connected thereto. The lower end of the connecting rod (37) is provided with a polygonal protrusion (38). The opening mechanism (4) is provided with a polygonal fixing hole (41). The polygonal fixing hole (41) and the polygonal protrusion (38) are polygons with the same number of sides. The polygonal protrusion (38) is located in the polygonal fixing hole (41). The limiting head (36) is located in the polygonal protrusion (38) and is threadedly connected thereto. The upper end face of the connecting rod (37) is provided with the connector (35) threadedly connected thereto. The connector (35) is rotatably connected to the locking mechanism (1).
8. An aircraft lavatory concealment trash bin door lock as defined in claim 1, wherein, The opening mechanism (4) is an opening handle.
9. An aircraft lavatory concealment bin door lock as defined in claim 1 wherein, The opening mechanism (4) includes a lower opening hook (42) and a lower support mechanism (43). The lower opening hook (42) is located at the lower end of the linkage mechanism (3) and is fastened to it. The lower opening hook (42) is located on the bottom side of the garbage bin door. The lower support mechanism (43) is installed on the garbage bin shell at the corresponding position of the lower opening hook (42). The lower opening hook (42) and the lower support mechanism (43) are connected.
10. An aircraft lavatory concealment bin door lock as defined in claim 9, wherein, The lower support mechanism (43) includes a lower locking hook frame (44) and a lower adapter frame (45). The lower locking hook frame (44) and the lower adapter frame (45) are fastened together. The lower adapter frame (45) is installed on the garbage can shell at the position corresponding to the lower opening hook (42). The lower opening hook (42) and the lower locking hook frame (44) are connected.