Safety door with sound insulation and noise reduction structure
Patent Information
- Application Number
- CN202522445123.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-18
AI Technical Summary
Existing soundproof doors have poor sound insulation due to gaps between the door frame and the door panel, allowing noise to easily enter the room through these gaps.
The design employs a spring mechanism in conjunction with a sealing strip, including a first sealing strip, a second sealing strip, and a spring mechanism. By utilizing the compression and reset action of the spring, the gap between the door frame and the door panel is reduced, enhancing the sealing effect.
By reducing the gaps, the sound insulation effect is significantly improved, enhancing the soundproofing performance of the door.
Smart Images
Figure CN224931583U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of door and window manufacturing technology, and in particular to a safety door with a sound insulation and noise reduction structure. Background Technology
[0002] Soundproof doors are primarily used in locations with high sound insulation requirements. Current soundproof doors typically involve filling the door frame with sound-absorbing material. This material slows down noise transmission. However, many doors are installed using hinges, creating gaps between the door frame and the door panel. While the door panel itself provides good sound insulation, sound can still pass through these gaps, reducing the overall soundproofing effect. Furthermore, doors and windows are frequently used and deform, causing further deformation of the door panel or frame, widening these gaps and worsening the sound insulation. Therefore, current technology often results in relatively large gaps between the door panel and frame, leading to poor sound insulation. This allows noise to easily enter the room through these gaps, thus reducing the soundproofing effectiveness of existing soundproof doors. Utility Model Content
[0003] This invention addresses the technical problem of soundproof doors failing to provide adequate sound insulation due to gaps between the door frame and the soundproof door. It provides a security door with a sound insulation and noise reduction structure, comprising a vertically arranged door frame and a matching door panel. The left side of the door panel is hinged to the door frame. The door panel contains a sound-absorbing layer with sound-absorbing sponge inside, and the surface of the door panel is coated with an anti-corrosion coating. A first annular sealing strip is provided at the edge of the door panel, and an annular guide groove is provided on the door frame. A second sealing strip, corresponding to the first sealing strip, is slidably mounted within the guide groove. Both the first and second sealing strips can be made of silicone rubber. Furthermore, the second sealing strip and its bottom end are provided with several elastic mechanisms to facilitate the reset of the second sealing strip. The elastic mechanism includes an outer sleeve and an inner sleeve. One end of the outer sleeve is fixed to the second sealing strip, and one end of the inner sleeve is fixed to the door frame. The inner side of the end of the outer sleeve is provided with an annular inner retaining ring; the outer end of the inner sleeve is provided with an annular outer retaining ring. When the door panel is closed, the first sealing strip contacts the second sealing strip and presses against the second sealing strip. The spring is compressed. Under the reaction of the spring, the second sealing strip contacts the first sealing strip and presses together, reducing the gap between the first and second sealing strips and enhancing the sound insulation effect. The other end of the inner sleeve can be slidably sleeved on the outer sleeve. The inner sleeve is provided with a spring. The spring is a compression spring, which can reset the second sealing strip.
[0004] Preferably, the cross-section of the first sealing strip is convex, and the cross-section of the second sealing strip is concave.
[0005] Preferably, the door frame is also provided with an annular third sealing strip, which is located inside the guide groove.
[0006] Preferably, the door panel is provided with a door handle for easy rotation.
[0007] Preferably, a door lock is provided on the door panel.
[0008] The above scheme has the following advantages: The elastic mechanism serves to reset the second sealing strip. When the door is closed, the first sealing strip contacts and presses against the second sealing strip, causing the second sealing strip to move inward along the guide groove. At this time, the spring is compressed, and under the action of the spring force, the second sealing strip and the first sealing strip are pressed together, reducing the gap between the door frame and the door and improving the sound insulation effect. The inner retaining ring on the outer sleeve and the outer retaining ring on the inner sleeve serve to limit the movement of the inner sleeve and prevent it from moving out of the outer sleeve. The first, second, and third sealing strips all serve a sealing function. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the main structure of this utility model; Figure 4 for Figure 3 A schematic diagram of the AA-direction cross-section mechanism; Figure 5 for Figure 4 Enlarged view of part A; Figure 6 This is a schematic diagram of the exploded structure of the door frame; Figure 7 This is a schematic diagram of the elastic mechanism. Figure 8 This is a schematic diagram of the explosive structure of an elastic mechanism.
[0010] Reference numerals in the attached drawings: 1. Door frame; 2. Door panel; 3. First sealing strip; 4. Second sealing strip; 5. Spring mechanism; 11. Hinge; 12. Guide groove; 13. Third sealing strip; 21. Door lock; 22. Door handle; 51. Outer sleeve; 52. Inner sleeve; 53. Spring; 54. Outer retaining ring; 55. Inner retaining ring. Detailed Implementation
[0011] like Figure 1-8As shown, a security door with a sound insulation and noise reduction structure includes a vertically arranged door frame 1 and a door panel 2 that matches the door frame 1. The left side of the door panel 2 is hinged to the door frame 1 via a hinge 11. The door panel 2 has a sound-absorbing layer inside, and sound-absorbing sponge is placed inside the sound-absorbing layer. The surface of the door panel 2 is coated with an anti-corrosion coating. An annular first sealing strip 3 is provided at the edge of the door panel 2, and an annular guide groove 12 is provided on the door frame 1. A second sealing strip 4 corresponding to the first sealing strip 3 is slidably arranged in the guide groove 12. The first sealing strip 3 and the second sealing strip 4 can be made of silicone rubber sealing strips. Furthermore, the second sealing strip 4 and its bottom end are provided with several elastic mechanisms 5 to facilitate the reset of the second sealing strip 4. The elastic mechanism 5 includes an outer sleeve 51 and an inner sleeve 52. One end of the outer sleeve 51 is fixed to the second sealing strip 4, and one end of the inner sleeve 52 is fixed to the door frame 1. The inner side of the end of the outer sleeve 51 is provided with an annular inner retaining ring 55; the outer end of the end of the inner sleeve 52 is provided with an annular outer retaining ring 54. When the door panel 2 is closed, the first sealing strip 3 contacts the second sealing strip 4 and presses against the second sealing strip 4. The spring 53 is compressed. Under the reaction of the spring 53, the second sealing strip 4 contacts the first sealing strip 3 and presses together, reducing the gap between the first sealing strip 3 and the second sealing strip 4 and enhancing the sound insulation effect. The other end of the inner sleeve 52 can be slidably sleeved on the outer sleeve 51. The inner sleeve 52 is provided with a spring 53. The spring 53 is a compression spring, which can reset the second sealing strip 4.
[0012] Preferably, the cross-section of the first sealing strip 3 is convex, and the cross-section of the second sealing strip 4 is concave.
[0013] Preferably, the door frame 1 is also provided with an annular third sealing strip 13, which is located inside the guide groove 12.
[0014] Preferably, the door panel 2 is provided with a door handle 22 for easy rotation of the door panel 2.
[0015] Preferably, the door panel 2 is provided with a door lock 21.
[0016] Usage process: When this utility model is in use, if a person needs to enter the room, they open the door panel 2 through the door handle 22. After the person enters the room, they turn the door panel 2 to close the door panel 2. The first sealing strip 3 comes into contact with the second sealing strip 4 and presses against the second sealing strip 4. The spring 53 is compressed. Under the reaction of the spring 53, the second sealing strip 4 comes into contact with the first sealing strip 3 and presses together, reducing the gap between the first sealing strip 3 and the second sealing strip 4 and enhancing the sound insulation effect.
[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0018] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A security door with a sound insulation and noise reduction structure, comprising a vertically arranged door frame and a door panel matching the door frame, wherein the left side of the door panel is hinged to the door frame via a hinge, characterized in that: A first sealing strip in the shape of an annular shape is provided at the edge of the door panel, and an annular guide groove is provided on the door frame. A second sealing strip corresponding to the first sealing strip is slidably provided in the guide groove. The second sealing strip and the bottom end are provided with several elastic mechanisms to facilitate the reset of the second sealing strip. The elastic mechanism includes an outer sleeve and an inner sleeve. One end of the outer sleeve is fixed to the second sealing strip, one end of the inner sleeve is fixed to the door frame, and the other end of the inner sleeve can be slidably sleeved on the outer sleeve. A spring is provided inside the inner sleeve.
2. A safety door with a sound insulation and noise reduction structure according to claim 1, characterized in that: The inner end of the outer sleeve is provided with an annular inner retaining ring; the outer end of the inner sleeve is provided with an annular outer retaining ring.
3. A safety door with a sound insulation and noise reduction structure according to claim 1, characterized in that: The first sealing strip has a convex cross-section, and the second sealing strip has a concave cross-section.
4. A safety door with a sound insulation and noise reduction structure according to claim 1, characterized in that: The door frame is also equipped with a ring-shaped third sealing strip, which is located inside the guide groove.
5. A safety door with a sound insulation and noise reduction structure according to claim 1, characterized in that: The door panel is equipped with a door handle for easy rotation.
6. A safety door with a sound insulation and noise reduction structure according to claim 5, characterized in that: The door panel is equipped with a door lock.
7. A safety door with a sound insulation and noise reduction structure according to claim 1, characterized in that: The door panel has a sound-absorbing layer inside, and the sound-absorbing layer contains sound-absorbing sponge.
8. A security door with a sound insulation and noise reduction structure according to claim 1, characterized in that: The surface of the door panel is coated with an anti-corrosion coating.