Unlocking mechanism for cargo hold door on airplane
By designing the structure of components such as door handles, lock boxes and buttons on the aircraft cargo door, and using hook springs and compression spring mechanisms to achieve rapid separation and connection, the problems of inconvenience and insufficient safety in the prior art are solved, and Convenient and safe operation of cargo doors.
Patent Information
- Application Number
- CN202420466103.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-12
AI Technical Summary
The existing aircraft cargo door unlocking structure is inconvenient to operate and is difficult to ensure safety and space efficiency.
A locking mechanism including hatch handle, hatch lock box, button, rotary shaft and limit rod is designed. Through the hook spring and compression spring mechanism, the fast separation and reconnection of the hatch handle and lock box are achieved to ensure safety and Convenient operation.
It provides a fast, safe and space-consuming cargo door operation method, reduces user operating costs, enhances the safety and reliability of the door, and ensures that the door is not opened or closed accidentally.
Smart Images
Figure CN222207544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field technology of cargo door on an aircraft, in particular to an unlocking mechanism for the cargo door on an aircraft. Background Art
[0002] The cargo door is located on the side of the aircraft fuselage. Normally, the aircraft can be loaded with cargo. According to the requirements of airworthiness regulations, the cargo door of the aircraft (especially cargo aircraft) should be opened quickly and conveniently under normal circumstances to provide better operation for the loading personnel. Therefore, the unlocking structure of the cargo door is a very important measure. To this end, an unlocking mechanism is provided to facilitate the opening and closing of the cargo door, which can provide convenient operating space for the loading personnel and save cargo space. Utility Model Content
[0003] In view of this, the present invention aims at the deficiencies of the prior art, and its main purpose is to provide a cargo door unlocking mechanism for an aircraft, so as to provide users with a cargo door unlocking structure that is more convenient to operate, thereby overcoming the deficiencies of the prior art.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cargo door unlocking mechanism for an aircraft, comprising a door handle arranged on a door lock box, buttons and a first rotating shaft are arranged on both sides of the door lock box, the button is connected to the first rotating shaft through a hook spring, and a limiting rod that can be connected to the button is also provided on the door lock box. The button is concave, and a second rotating shaft connected to one end of the hook spring is arranged in its inner cavity. One end of the button is hook-shaped and is clamped with the limiting rod.
[0005] Furthermore, the two ends of the hook spring correspond to the left and right parts of the button.
[0006] Furthermore, the hatch lock box is connected to a second handle shaft via a socket, and the second handle shaft is connected to the hatch handle via a first bolt.
[0007] Furthermore, the second handle rotating shaft is plugged with the first handle rotating shaft, and the first handle rotating shaft is connected to the cabin door lock box.
[0008] Furthermore, a compression spring is provided on the bottom wall of the first handle rotating shaft, and one end of the compression spring is connected to the second handle rotating shaft.
[0009] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that through the cabin door handle, the cabin door lock box, the first handle shaft and other components, the lock box structure can fix the handle and the first handle shaft on the cabin door lock box. When the locking and opening device is in the locked state, the cabin door handle is fixedly matched with the cabin door lock box, the handle is locked, and the handle is closed. In the closed state, relying on the button and the upper limit rod of the cabin door lock box, the mechanism of this part of the aircraft can be locked to prevent falling off, providing a good driving environment for the aircraft.
[0010] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of a lock of an example of the utility model.
[0012] Figure 2 It is a schematic diagram of a handle of an example of the utility model.
[0013] Figure 3 It is a cross-sectional view of a lock cavity of an example of the utility model.
[0014] Figure 4 It is a cross-sectional view of a lock cover of an example of the utility model.
[0015] Description of the accompanying drawings:
[0016] The hatch handle 1; the hatch lock box 2; the button 3; the first rotating shaft 4; the hook spring 5; the second rotating shaft 6; the limit rod 7; the first bolt 8; the first handle rotating shaft 9; the second handle rotating shaft 10; the compression spring 11; and the second bolt 12. DETAILED DESCRIPTION
[0017] Reference Figure 1 As shown, a cargo door unlocking mechanism for an aircraft includes a door handle 1 arranged on a door lock box 2, buttons 3 and a first rotating shaft 4 are arranged on both sides of the door lock box 2, the button 3 is connected to the first rotating shaft 4 through a hook spring 5, and a limiting rod 7 that can be connected to the button 3 is also arranged on the door lock box 2. The button 3 is concave, and its inner cavity is provided with a second rotating shaft 6 connected to one end of the hook spring 5, and one end of the button 3 is hook-shaped and clamped with the limiting rod 7. The user presses the button 3 on both sides of the door lock box 2 away from the limiting rod 7, so that the button 3 squeezes one end of the hook spring 5 and the other side of the button 3 is tilted, and the tilted side of the button 3 is separated from the limiting rod 7, so that the door handle 1 can be separated from the door lock box 2. So far, when the user presses the button 3, the door handle 1 can be separated from the door lock box 2. In this way, the cabin door can be opened or closed, providing a convenient way to enter and exit the cabin door.
[0018] For example, the concave design and spring mechanism of the button 3 can ensure that the button remains in place when not pressed, thereby preventing the hatch from being accidentally opened or closed.
[0019] For example, the presence of the limit rod 7 can ensure that the button 3 can only connect with the hook spring 5 when pressed, further enhancing the safety of the cabin door. The user only needs to press the buttons 3 located on both sides of the cabin door lock box 2 to easily separate the cabin door handle 1 from the cabin door lock box 2.
[0020] For example, this operation mode reduces the user's effort and time cost, and when the door handle 1 is separated from the door lock box 2, the button 3 is automatically locked in the open state. This means that the door will not be accidentally closed, ensuring the safety inside and outside the cabin.
[0021] Exemplarily, the design of the hook spring 5 and the second rotating shaft 6 ensures that the button 3 maintains a stable position when not pressed.
[0022] For example, it can also prevent the button 3 from being accidentally triggered during normal use and provide long-lasting stability. The design uses strong materials and mechanisms, and has strong durability and reliability. It can withstand long-term use and repeated operations, ensuring the reliability and safety of the hatch. The two ends of the hook spring 5 correspond to the left and right parts of the button 3.
[0023] For example, Figure 3 and Figure 4 The hatch lock box 2 shown is connected to a second handle shaft 10 through a socket, and the second handle shaft 10 is connected to the hatch handle 1 through a first bolt 8. The second handle shaft 10 is plugged with a first handle shaft 9, and the first handle shaft 9 is connected to the hatch lock box 2. A compression spring 11 is provided on the bottom wall of the first handle shaft 9, and one end of the compression spring 11 is connected to the second handle shaft 10. When the user presses the button 3 to separate the hatch handle 1 from the hatch lock box 2, the compression spring 11 in the first handle shaft 9 pops out due to lack of squeezing, and the second handle shaft 10 is squeezed by the elastic reset of the compression spring 11, so that the second handle shaft 10 pushes the hatch handle 1 to quickly separate from the rudder door lock box 2, thereby facilitating the user to perform the unlocking operation.
[0024] For example, when the user presses the button 3 to separate the door handle 1 from the door lock box 2, the compression spring 11 on the first handle shaft 9 will pop out due to the loss of compression. This causes the second handle shaft 10 to be elastically acted upon by the compression spring 11, thereby pushing the door handle 1 to quickly separate from the door lock box 2. In this way, when the door needs to be unlocked, the user can quickly separate the door handle, thereby improving the operation efficiency.
[0025] For example, when the door handle 1 is separated from the door lock box 2, the compression spring 11 will use its elastic force to squeeze the second handle shaft 10. In this way, when the user releases the button 3, the compression spring 11 will push the second handle shaft 10 back to its original position, so that the door handle 1 is reconnected to the door lock box 2, thereby improving the stability and reliability of the door handle system.
[0026] For example, through this design, the user can easily unlock the door. The door handle can be quickly separated by pressing button 3 without complicated operations or tools, which provides convenience and simplicity of operation.
[0027] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. An unlocking mechanism for a cargo door on an aircraft, characterized in that: The invention comprises a door handle (1) arranged on a door lock box (2), buttons (3) and a first rotating shaft (4) are arranged on both sides of the door lock box (2), the button (3) is connected to the first rotating shaft (4) through a hook spring (5), and a limiting rod (7) which can be connected to the button (3) is also arranged on the door lock box (2), the button (3) is concave, and a second rotating shaft (6) connected to one end of the hook spring (5) is arranged in the inner cavity of the button (3), and one end of the button (3) is hooked and clamped to the limiting rod (7).
2. The unlocking mechanism for a cargo door on an aircraft according to claim 1, characterized in that: The two ends of the hook spring (5) correspond to the left and right parts of the button (3).
3. The unlocking mechanism for a cargo door on an aircraft according to claim 1, characterized in that: The hatch lock box (2) is connected to a second handle rotating shaft (10) via a socket, and the second handle rotating shaft (10) is connected to the hatch handle (1) via a first bolt (8).
4. The unlocking mechanism for a cargo door on an aircraft according to claim 3, characterized in that: The second handle rotating shaft (10) is plugged with the first handle rotating shaft (9), and the first handle rotating shaft (9) is connected to the cabin door lock box (2).
5. The unlocking mechanism for a cargo door on an aircraft according to claim 4, characterized in that: A compression spring (11) is provided on the bottom wall of the first handle rotating shaft (9), and one end of the compression spring (11) is connected to the second handle rotating shaft (10).