1. Adaptive: Within a certain range, the door lock can automatically adapt to the height difference between the door leaf and the door frame in the cavity through the spring ring, and provide different locking forces according to the degree of rotation.
2. Easy to operate, can be used by hand or with common simple tools, effectively reducing costs.
3. Small in size, suitable for a wide range of scenarios, especially frequent opening and closing of doors, requiring vibration isolation, noise reduction, and a sealed working environment.