High bearing type connecting rod lock structure

By designing a high-load-bearing connecting rod lock structure including a front clamp of the lock body, a rear clamp of the lock body, a crank rocker arm, a connecting rod and a lock hook, the existing aircraft lock mechanism is not integrated, large in weight and difficult position tolerance. The guaranteed problem achieves high load-bearing, compact integration and mechanical locking and unlocking effects without energy requirements.

CN119466462AActive Publication Date: 2025-02-18XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Patent Information

Application Number
CN202411906270.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-02-18
Estimated Expiration
2044-12-23

AI Technical Summary

Technical Problem

While the existing aircraft lock mechanism achieves high load-bearing capacity, there are problems such as low integration, large weight, wasted space and difficult to guarantee the position tolerance of the locked structure.

Method used

A high-load-bearing connecting rod lock structure is designed, including the front clamp of the lock body, the rear clamp of the lock body, the crank rocker arm, the connecting rod and the lock hook. The lock hook is driven to rotate through the crank rocker arm, and the spring mechanism is used to realize unlocking and locking. Switching state without increasing energy.

Benefits of technology

A high load-bearing lock mechanism with compact structure, high integration and light weight is realized, and mechanical locking and unlocking can be achieved without energy, ensuring the high load-bearing capacity and stability of the lock mechanism.

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    Figure CN119466462A_ABST
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Abstract

The invention belongs to the technical field of aircraft structure design, and relates to a high-load-bearing type connecting rod lock structure. The structure comprises a lock body front clamping plate (1), a lock body rear clamping plate (2), a crank rocker arm (6), a connecting rod (9) and a lock hook (10), a crank rotating shaft (8) and a lock hook rotating shaft (12) are rotationally arranged between the lock body front clamping plate (1) and the lock body rear clamping plate (2), a crank rocker arm (6) is fixed to the crank rotating shaft (8), a lock hook (10) is fixed to the lock hook rotating shaft (12), three rocker arms are arranged on the crank rocker arm (6), the first rocker arm is hinged to the lock hook (10), and a second spring shaft (7) is arranged at the position of the second rocker arm. The first spring shaft (3) is arranged between the lock body front clamping plate (1) and the lock body rear clamping plate (2), and the third rocker arm is connected with an external load. The mechanical lock is compact in structure, high in integration level and light in weight, and mechanical locking and unlocking can be achieved without adding energy.
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Citation Information

Patent Citations

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    CN112373671A

  • Safe locking mechanism of aircraft cabin door lock mechanism

    CN115573631A

  • Falling type aircraft cabin door lock mechanism

    CN115584897A

  • Electric hydraulic lock structure

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