A claw-lock structure with load-bearing, anti-rotation, and flexible unlocking functions
By adopting a claw-locking rod and a thrust piston design, the problems of complex structure and self-rotation of existing separation nuts are solved, achieving lightweight and low-impact separation, and improving the reliability and ease of assembly of the separation device.
CN117307579BActive Publication Date: 2026-05-26CHUANNAN MACHINERY PLANT CHINA ASTRONAUTIC SCI &TECH GROUP CORP
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Patent Information
- Application Number
- CN202311431653.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-31
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2043-10-31
AI Technical Summary
Technical Problem
The existing design of the release nut is complex, has a self-rotation phenomenon, causes large impacts, and is heavy, which cannot meet the requirements of simple, reliable, and low-impact tasks.
Method used
The design replaces the locking rod, split nut, and anti-rotation pin with a claw-locking rod, and combines a thrust piston and a locking piston to achieve rigid load-bearing and flexible unlocking. The claw-locking rod is flexibly contracted and expanded through a high-pressure fluid medium to avoid structural collisions.
Benefits of technology
The simplified structure reduces the number of parts and weight, achieving a smooth, low-impact separation effect and improving assembly processability and reliability.
✦ Generated by Eureka AI based on patent content.
Abstract
This invention relates to a claw-lock structure with load-bearing, anti-rotation, and flexible unlocking functions. During installation, the claw-lock rod is inserted into the housing, aligning with the keyway corresponding to the claw-lock rod. The locking piston is then placed into the thrust piston, followed by the locking plate. A plug is screwed into the thrust piston, ensuring the plug abuts against the locking plate, which in turn abuts against the locking piston. The assembled thrust piston is then placed into the housing, and the cap is screwed into the housing along its external thread, ensuring the cap is firmly against the thrust piston, guaranteeing that the conical surfaces of the four claws of the claw-lock rod are tightly against the conical surfaces of the locking piston. This invention uses a claw-lock rod instead of the locking rod, split nut, and anti-rotation pin found in existing release nuts, reducing the number of parts and simplifying the installation process. It achieves load-bearing separation using a rigid load-bearing and flexible separation method, preventing collisions between structures during operation and resulting in a significant impact response. The entire separation process is smooth, with a significant low-impact separation effect.
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