Adjustable lock mechanism

Abstract

The utility model relates to the technical field of aircraft cabin doors, and provides an adjustable lock mechanism which comprises a lock shell which is installed on an aircraft cabin door frame, internally provided with a lock cylinder, matched with the lock shell and capable of rotating in the lock shell. The adjusting mechanism comprises an adjusting rod and an adjusting nut, one end of the adjusting rod is connected with the lock cylinder, the other end of the adjusting rod penetrates through the lock shell and is matched with the adjusting nut, the position of the lock cylinder can be adjusted by rotating the adjusting nut, the spring bolt is connected with the lock cylinder and can stretch out or retract along with rotation of the lock cylinder, and the lock catch is installed on the aircraft cabin door and is matched with the spring bolt. The cabin door locking device is used for locking or unlocking a cabin door and can be adjusted according to actual requirements so as to improve the safety and sealing performance of the airplane cabin door.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft cabin doors, in particular to an adjustable locking mechanism. Background Art

[0002] With the continuous advancement of aviation technology, aircraft design and manufacturing have continuously improved, placing higher demands on the safety and sealing of aircraft cabin doors. Traditional aircraft cabin door locking mechanisms mostly use fixed structures that cannot be adjusted according to actual needs. This can result in failure to fully close the cabin door in certain circumstances, further compromising the overall safety performance of the aircraft. Therefore, a locking mechanism that can be adjusted according to actual needs is urgently needed to address this problem. Utility Model Content

[0003] The purpose of the utility model is to provide an adjustable lock mechanism that can be adjusted according to actual needs to improve the safety and sealing of aircraft cabin doors.

[0004] To achieve the above objectives, the present invention provides an adjustable locking mechanism, which is characterized by comprising:

[0005] 1. Lock housing: Installed on the aircraft door frame, with a lock cylinder inside;

[0006] 2. Lock cylinder: cooperates with the lock housing and can rotate inside the lock housing;

[0007] 3. Adjustment mechanism: This includes an adjustment rod and an adjustment nut. One end of the adjustment rod is connected to the lock cylinder, while the other end passes through the lock housing and engages with the adjustment nut. Rotating the adjustment nut adjusts the position of the lock cylinder.

[0008] 4. Lock tongue: connected to the lock cylinder and can extend or retract as the lock cylinder rotates;

[0009] 5. Lock: Installed on the aircraft door and works with the lock tongue to lock or unlock the door.

[0010] Through the above structural design, the locking mechanism of the present invention can be adjusted according to actual needs, thereby ensuring that the cabin door is completely closed, thereby improving the safety and sealing of the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the lock mechanism of the present invention;

[0012] FIG2 is a schematic diagram of the lock tongue and lock catch of the lock mechanism of the present invention. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementations.

[0014] As attached Figure 1 As shown, the utility model provides an adjustable lock mechanism, which includes a lock housing 1, a lock core 2, an adjustment mechanism 3, a lock tongue 4 and a lock catch 5.

[0015] A lock housing 1 is mounted on the aircraft door frame and contains a lock cylinder 2. The lock cylinder 2 rotates within the lock housing 1. An adjustment mechanism 3 includes an adjustment rod 31 and an adjustment nut 32. One end of the adjustment rod 31 is connected to the lock cylinder 2, while the other end passes through the lock housing 1 and engages with the adjustment nut 32. Rotating the adjustment nut 32 allows the position of the lock cylinder 2 to be adjusted. A lock tongue 4 is connected to the lock cylinder 2 and can extend or retract as the lock cylinder 2 rotates. A lock catch 5 is mounted on the aircraft door and engages with the lock tongue 4 to lock and unlock the door.

[0016] As attached Figure 2 As shown, when the hatch door needs to be locked, the lock cylinder 2 is rotated, causing the lock tongue 4 to extend and engage with the lock catch 5 to lock the hatch door. By rotating the adjustment nut 32, the position of the lock cylinder 2 can be adjusted, thereby adjusting the extension length of the lock tongue 4 to meet different locking requirements and ensure that the hatch door is completely closed.

[0017] The lock mechanism of the present invention may also be provided with a limit device to limit the rotation angle of the lock cylinder 2 to prevent damage to the lock tongue 4 due to excessive rotation. The limit device may be in the form of a limit pin or a limit groove, the limit pin being provided in the lock housing 1 and the limit groove being provided on the lock cylinder 2. The limit pin and the limit groove cooperate to limit the rotation angle of the lock cylinder 2.

[0018] In addition, the lock mechanism of the present invention can also be provided with a spring device to provide a reset force for the lock cylinder 2. The spring device can be arranged between the adjustment rod 31 and the lock housing 1. When the lock cylinder 2 is rotated to lock the door, the spring device provides a reset force, causing the lock cylinder 2 to automatically return to its initial position, facilitating unlocking the door the next time.

[0019] In summary, the present invention, by providing an adjustment mechanism, can adjust the position of the lock cylinder according to actual needs, thereby adjusting the extension length of the lock tongue, ensuring that the cabin door is completely closed, and improving the safety and sealing of the aircraft. At the same time, the provision of a limit device and a spring device further improves the reliability and ease of use of the lock mechanism.

[0020] In order to further illustrate the advantages of the present invention, the preferred embodiments of the present invention are further described below in conjunction with specific examples.

[0021] Example 1:

[0022] In this embodiment, the lock housing 1 is constructed from a high-strength alloy, enhancing the overall strength and durability of the lock mechanism. The lock core 2 is constructed from stainless steel, offering excellent corrosion resistance and mechanical strength. The adjustment rod 31 is threadedly secured to the lock core 2, enabling precise adjustment. The adjustment nut 32 features an external hexagonal design for easy adjustment with a wrench. The lock tongue 4 features a trapezoidal cross-section, increasing the contact area with the lock catch 5 and further enhancing locking strength.

[0023] Example 2:

[0024] In this embodiment, the limiting device is a combination of a limiting pin and a limiting slot. The limiting pin is fixed within the lock housing 1, and the limiting slot is provided on the outer circumference of the lock cylinder 2. The limiting pin enters the limiting slot, limiting the rotation angle of the lock cylinder 2. The spring device is a compression spring, disposed between the adjustment rod 31 and the lock housing 1. When the lock cylinder 2 is rotated to the locked position, the compression spring provides a restoring force, automatically returning the lock cylinder 2 to its initial position.

[0025] Example 3:

[0026] In this embodiment, the lock mechanism is also provided with a protective cover. The protective cover is installed on the outside of the lock housing 1 to protect the lock cylinder 2 and the adjustment mechanism 3, preventing dust and debris from entering the lock mechanism and affecting its normal operation. The protective cover adopts a quick-release design to facilitate maintenance and inspection.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. Strong adjustability: The adjustment mechanism can adjust the position of the lock cylinder according to actual needs, thereby adjusting the extension length of the lock tongue to ensure that the cabin door is completely closed, improving the safety and sealing of the aircraft.

[0029] 2. Reliable structure: By setting a limit device, the lock cylinder is prevented from excessive rotation and damage, which further improves the reliability of the lock mechanism.

[0030] 3. Easy to use: A spring device is provided to provide a reset force for the lock cylinder, so that the lock cylinder automatically returns to its initial position, simplifying the operation steps and facilitating use.

[0031] 4. Easy maintenance: The lock mechanism is equipped with a protective cover to effectively prevent dust and debris from entering the lock mechanism. At the same time, it adopts a quick-release design for easy maintenance and inspection.

[0032] This utility model provides an adjustable locking mechanism. By providing an adjustment mechanism, a limiter, and a spring mechanism, it can be adjusted according to actual needs to ensure the door is completely closed, thereby improving the safety and sealing of the aircraft. Furthermore, this utility model has a simple structure, is easy to use, and is easy to maintain, and has broad application prospects.

[0033] Although the present invention has been described in detail through the embodiments, it should be understood by those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An adjustable locking mechanism, characterized in that: include: A lock housing, mounted on the aircraft door frame, with a lock cylinder inside; A lock cylinder cooperates with the lock housing and is capable of rotating within the lock housing; The adjustment mechanism includes an adjustment rod and an adjustment nut. One end of the adjustment rod is connected to the lock core, and the other end passes through the lock housing and cooperates with the adjustment nut. The position of the lock core can be adjusted by rotating the adjustment nut. The lock tongue is connected to the lock cylinder and can be extended or retracted as the lock cylinder rotates; The lock catch is installed on the aircraft door and cooperates with the lock tongue to lock or unlock the door.

2. The adjustable lock mechanism according to claim 1, characterized in that: The lock shell is made of high-strength alloy material, and the lock core is made of stainless steel material.

3. The adjustable lock mechanism according to claim 1, characterized in that: The adjusting rod is fixed to the lock core by a threaded connection, and the adjusting nut adopts an external hexagonal design.

4. The adjustable lock mechanism according to claim 1, wherein: The locking tongue adopts a trapezoidal cross-section design.

5. The adjustable lock mechanism according to claim 1, wherein: The lock mechanism also includes a limiting device for limiting the rotation angle of the lock cylinder.

6. The adjustable lock mechanism according to claim 5, characterized in that: The limiting device includes a limiting pin and a limiting groove, the limiting pin is fixed in the lock shell, and the limiting groove is arranged on the outer peripheral surface of the lock core.

7. The adjustable lock mechanism according to claim 1, wherein: The lock mechanism further comprises a spring device for providing a reset force for the lock cylinder.

8. The adjustable lock mechanism according to claim 7, wherein: The spring device is a compression spring, which is arranged between the adjusting rod and the lock housing.

9. The adjustable lock mechanism according to claim 1, wherein: The lock mechanism also includes a protective cover installed on the outside of the lock housing for protecting the lock core and the adjustment mechanism.

10. The adjustable lock mechanism according to claim 9, wherein: The protective cover adopts a quick-release design.

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