Working Principle
When the door is closed, the trigger device on the door frame is pressed, causing the sealing strip to extend downward to the ground, achieving a seal. When the door is opened, the trigger device is no longer pressed, and the sealing strip automatically retracts, preventing obstruction of the door’s movement.
Structural Composition
It typically includes an external aluminum profile, which provides support and protection; an internal support frame to maintain structural stability; an elastic sealing strip to achieve dustproof, soundproof, and sealing functions; and fixing components to secure the sealing strip to the bottom of the door.
Advantages
- Excellent Soundproofing: Effectively blocks external noise, such as footsteps in hallways or traffic sounds, creating a quiet indoor environment.
- Dust and Insect Prevention: Seals the gap at the bottom of the door tightly, making it difficult for dust and small insects to enter, keeping the indoor space clean.
- Energy Efficiency and Insulation: Prevents heat loss in winter and blocks cold air from escaping in summer, reducing indoor-outdoor air exchange and lowering energy consumption.
- Door Protection: Forms a buffer layer between the door and the frame, reducing the impact force when closing the door and extending the door’s lifespan.
- Ease of Use: Features an automatic rising and lowering function—sealing automatically when the door is closed and retracting when the door is opened—without affecting normal door operation.
Installation Methods
- Recessed Installation: Requires machining a groove at the bottom of the door to embed the sealing strip. After installation, the door surface remains flat and aesthetically pleasing, suitable for places with high aesthetic requirements.
- Surface-mounted Installation: No need to create a groove at the bottom of the door. The sealing strip is directly fixed to the surface of the door bottom, making installation simple and fast, suitable for doors that are difficult to modify.
Post time: Mar-21-2025