Novel magnetic sealing strip
By using a double-sided magnetic strip and serrated groove design, combined with magnetic attraction and baffle structure, the problems of sealing, aesthetics and service life of double sliding doors or double doors are solved, achieving better sealing effect and improved appearance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN BOHUA DECORATION MATERIALS CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-05-08
AI Technical Summary
Existing double sliding doors or double doors have poor sealing structures, poor aesthetics, and short service life. They are especially prone to wear and aging during frequent opening and closing, which affects the indoor environment and appearance.
It adopts a double-sided magnetic strip design, with strong and weak magnetic parts working together, combined with a PVC or aluminum alloy frame and soft PVC rubber sealing strips. It uses magnetic attraction and serrated grooves to enhance sealing performance, and provides protection and support through a baffle structure.
It improves the door's sealing performance, aesthetics, and lifespan, reduces the possibility of air and dust passing through door gaps, and enhances sound insulation, dust prevention, and heat preservation.
Smart Images

Figure CN224214086U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window sealing technology, specifically to a novel magnetic sealing strip. Background Technology
[0002] In building doors and windows, as well as various equipment cabinet doors, the sealing performance of doors is crucial. Double sliding doors and swing doors are widely used in daily life and industrial settings, but they commonly suffer from sealing problems:
[0003] Traditional sealing structures have poor sealing performance: Existing double sliding doors or hinged doors often use a simple rubber strip directly attached to the door for sealing. After prolonged use, due to frequent opening and closing, the rubber strip is prone to wear and deformation, failing to seal tightly against the door gaps. This allows air, dust, and rainwater to easily enter, affecting indoor cleanliness, temperature stability, and sound insulation. For example, in northern winters, cold winds can enter the room through poorly sealed door gaps, lowering indoor temperature and increasing heating energy consumption; in areas with high wind and sandstorms, large amounts of dust can enter the room, increasing cleaning costs.
[0004] Poor aesthetics: Traditional door sealing strips are usually simply installed on the edge of the door, which looks rather obtrusive and detracts from the overall appearance of the door. Especially in places that pursue high-quality decoration, such as high-end residences and commercial office buildings, these unsightly sealing strips clash with the overall decoration style and affect the overall visual effect of the space.
[0005] Short lifespan: Due to the significant friction experienced by the door sealing strip during opening and closing, and its susceptibility to environmental factors such as ultraviolet radiation, existing sealing strips are prone to aging and breakage, requiring frequent replacement. This not only increases maintenance costs but also affects the normal use of the door, causing considerable inconvenience to users. For example, frequent replacement of sealing strips can lead to increased operating costs in commercial establishments, and for large shopping malls and supermarkets, replacing sealing strips may even disrupt normal business operations.
[0006] In summary, the existing sealing structures of double sliding doors or double doors have significant shortcomings in terms of sealing performance, aesthetics, and service life. There is an urgent need for a new sealing solution to improve these problems and enhance the overall performance of the doors. Utility Model Content
[0007] The present invention aims to solve the problems mentioned in the background art by providing a novel magnetic sealing strip.
[0008] The specific technical solution is as follows:
[0009] A novel magnetic sealing strip includes a double-sided magnetic strip, wherein the two ends of the double-sided magnetic strip are a weak magnetic part and a strong magnetic part, wherein the weak magnetic part is inserted into the interior of the metal frame of the magnetic sealing strip.
[0010] A sealing strip is provided on the outside of the magnetic sealing strip metal frame, and the sealing strip and the magnetic sealing strip metal frame enclose the double-sided magnetic strip;
[0011] The outer frame is installed inside the door body, and a groove is provided on the outer side wall of the outer frame. The magnetic sealing strip metal frame passes through the groove and is movably inserted into the interior of the outer frame.
[0012] A magnetic strip that attracts the weak magnetic part is inserted inside the outer frame.
[0013] As a preferred embodiment of this utility model, the top and bottom of the inner side of the magnetic sealing strip metal frame are integrally formed with baffles A, and the outer periphery of the sliding groove is baffle AA, which blocks baffle A.
[0014] As a preferred embodiment of this utility model, the top and bottom of the inner side of the magnetic strip are integrally formed with baffles BB, and the inner side of the outer frame is integrally formed with baffles B, which hold the baffles BB inside.
[0015] As a preferred embodiment of this utility model, the outer frame is a PVC frame or an aluminum alloy frame.
[0016] As a preferred embodiment of this utility model, the outer wall of the sealing strip is provided with a serrated groove.
[0017] As a preferred embodiment of this utility model, the sealing strip is a soft PVC rubber sealing strip.
[0018] This utility model has the following beneficial effects:
[0019] This new type of magnetic sealing strip has a strong magnetic part that attracts the strong magnetic part of the opposite door when the door is closed, thus achieving a sealing effect; when the door is open, the weak magnetic part attracts the magnetic strip, allowing the metal frame of the magnetic sealing strip and the sealing strip on it to be retracted into the outer frame, protecting the sealing strip, increasing its service life, and improving the aesthetics of the door.
[0020] Baffle AA blocks baffle A, and a sealing strip is set on the outside. Together with the sealing strip, they wrap the double-sided magnetic strip, providing protection and support for the double-sided magnetic strip. The baffle A, which is integrally formed at the top and bottom of the inner side, works with the baffle AA around the outer frame slide groove to prevent the metal frame of the magnetic sealing strip from moving excessively and to ensure its stable sliding within the outer frame.
[0021] The outer frame is installed inside the door to provide an installation position for the magnetic sealing strip metal frame; a sliding groove is opened on the outer side wall to facilitate the insertion of the magnetic sealing strip metal frame and realize the extension and retraction function of the sealing strip; the inner one-piece molded baffle B locks the baffles BB on the top and bottom of the inner side of the magnetic strip to ensure the stable installation of the magnetic strip, thereby ensuring the stable magnetic attraction between the double-sided magnetic strips.
[0022] The outer wall of the sealing strip has serrated grooves, which significantly enhances the sealing performance. When both doors are closed, the serrated grooves increase the friction and tightness of the seal when in contact with the other door. Due to the serrated structure, it can fill more tiny gaps between the doors, reducing the possibility of air and dust entering through the gaps, achieving a better sealing effect, and improving the door's sound insulation, dustproofing, and heat insulation properties. Attached Figure Description
[0023] Figure 1 A state diagram of the novel magnetic sealing strip when the door is closed, provided for an embodiment of this utility model;
[0024] Figure 2 A schematic diagram of a novel magnetic sealing strip provided for an embodiment of this utility model;
[0025] Figure 3 This is a state diagram of the novel magnetic sealing strip when the door is closed, provided as an embodiment of the present utility model. Specifically, it is a state diagram of the sealing strips with serrated grooves being in contact with each other.
[0026] In the picture:
[0027] 100. Double-sided magnetic strip; 110. Weak magnetic part; 120. Strong magnetic part; 200. Magnetic sealing strip metal frame; 210. Baffle A; 300. Sealing strip; 310. Serrated groove; 400. Outer frame; 410. Sliding groove; 420. Baffle AA; 430. Baffle B; 500. Magnetic strip; 510. Baffle BB. Detailed Implementation
[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0029] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0030] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Example 1
[0033] like Figures 1-3 This utility model provides a novel magnetic sealing strip, including a double-sided magnetic strip 100, with a weak magnetic part 110 and a strong magnetic part 120 at its two ends, wherein the weak magnetic part 110 is inserted inward into the interior of the magnetic sealing strip metal frame 200; a sealing strip 300 is provided on the outer side of the magnetic sealing strip metal frame 200, and the sealing strip 300 and the magnetic sealing strip metal frame 200 enclose the double-sided magnetic strip 100; an outer frame 400 is installed inside the door body, and a sliding groove 410 is provided on the outer side wall of the outer frame 400, through which the magnetic sealing strip metal frame 200 is inserted into the interior of the outer frame 400; a magnetic strip 500 that attracts the weak magnetic part 110 is inserted into the interior of the outer frame 400. The double-sided magnetic strip 100 has a weak magnetic part 110 and a strong magnetic part 120 at each end. The weak magnetic part 110 is inserted into the magnetic sealing strip metal frame 200 and attracts the magnetic strip 500 inside the outer frame 400, so that the magnetic sealing strip metal frame 200 can be stably installed inside the outer frame 400. When the door is closed, the strong magnetic part 120 can attract the strong magnetic part 120 of the opposite door, which plays a sealing role. When the door is open, the weak magnetic part 110 attracts the magnetic strip 500, so that the magnetic sealing strip metal frame 200 and the sealing strip 300 on it can be retracted into the outer frame 400, protecting the sealing strip 300, increasing its service life, and improving the aesthetics of the door.
[0034] The top and bottom of the inner side of the magnetic sealing strip metal frame 200 are integrally formed with baffles A210. The outer periphery of the slide groove 410 is baffle AA420, which blocks the baffle A210. A sealing strip 300 is set on the outer side, which together with the sealing strip 300 wraps the double-sided magnetic strip 100, providing protection and support for the double-sided magnetic strip 100. The baffles A210 integrally formed on the top and bottom of the inner side, together with the baffles AA420 on the outer periphery of the slide groove 410 of the outer frame 400, prevent the magnetic sealing strip metal frame 200 from moving excessively and ensure its stable sliding within the outer frame 400.
[0035] The top and bottom of the inner side of the magnetic strip 500 are integrally formed with baffles BB510, and the inner side of the outer frame 400 is integrally formed with baffles B430. Baffles B430 hold baffles BB510 inside. The outer frame 400 is installed inside the door body to provide an installation position for the magnetic sealing strip metal frame 200. A sliding groove 410 is opened on the outer side wall to facilitate the insertion of the magnetic sealing strip metal frame 200 and realize the extension and retraction function of the sealing strip. The integrally formed baffles B430 inside hold the baffles BB510 on the top and bottom of the inner side of the magnetic strip 500 to ensure the stable installation of the magnetic strip 500, thereby ensuring a stable magnetic attraction between the double-sided magnetic strip 100 and the magnetic strip 500.
[0036] The outer frame 400 is made of PVC or aluminum alloy, which has good strength and durability, effectively protects the internal structure, and extends the overall service life.
[0037] The outer wall of the sealing strip 300 has a serrated groove 310, which significantly enhances the sealing performance. When both doors are closed, the serrated groove 310 increases the friction and tightness of the fit when in contact with the other door. Due to the serrated structure, it can fill more tiny gaps between the doors, reducing the possibility of air and dust entering through the gaps, achieving a better sealing effect, and improving the door's sound insulation, dustproofing, and heat insulation performance.
[0038] The sealing strip 300 is a soft PVC rubber sealing strip. As a soft PVC rubber sealing strip, the material is soft and can better fit the door body, improving the sealing effect. The outer wall has a serrated groove 310, which increases the contact area and friction with air, further improving the sealing performance and preventing air, dust and other substances from entering through the door gap.
[0039] Therefore, in this novel magnetic sealing strip, the strong magnetic part 120 can attract the strong magnetic part 120 of the opposite door when the door is closed, thus achieving a sealing effect; when the door is open, the weak magnetic part 110 attracts the magnetic strip 500, allowing the metal frame 200 of the magnetic sealing strip and the sealing strip 300 on it to be retracted into the outer frame 400, protecting the sealing strip 300, increasing its service life, and improving the aesthetics of the door.
[0040] The baffle AA420 blocks the baffle A210, and a sealing strip 300 is set on the outside. Together with the sealing strip 300, they wrap the double-sided magnetic strip 100, providing protection and support for the double-sided magnetic strip 100. The baffle A210, which is integrally formed at the top and bottom of the inner side, cooperates with the baffle AA420 around the slide groove 410 of the outer frame 400 to prevent the metal frame 200 of the magnetic sealing strip from moving excessively and to ensure its stable sliding within the outer frame 400.
[0041] The outer frame 400 is installed inside the door body to provide an installation position for the magnetic sealing strip metal frame 200; a sliding groove 410 is opened on the outer side wall to facilitate the insertion of the magnetic sealing strip metal frame 200 and realize the extension and retraction function of the sealing strip; the internally integrally formed baffle B430 locks the baffles BB510 on the top and bottom of the inner side of the magnetic strip 500 to ensure the stable installation of the magnetic strip 500, thereby ensuring a stable magnetic attraction between the double-sided magnetic strip 100 and the magnetic strip 500;
[0042] The outer wall of the sealing strip 300 has a serrated groove 310, which significantly enhances the sealing performance. When both doors are closed, the serrated groove 310 increases the friction and tightness of the fit when in contact with the other door. Due to the serrated structure, it can fill more tiny gaps between the doors, reducing the possibility of air and dust entering through the gaps, achieving a better sealing effect, and improving the door's sound insulation, dustproofing, and heat insulation performance.
[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel magnetic sealing strip, characterized in that, include: A double-sided magnetic strip (100) has a weak magnetic part (110) and a strong magnetic part (120) at its two ends, wherein the weak magnetic part (110) is inserted into the interior of the magnetic sealing strip metal frame (200). The outer side of the magnetic sealing strip metal frame (200) is provided with a sealing strip (300), and the sealing strip (300) and the magnetic sealing strip metal frame (200) enclose the double-sided magnetic strip (100); The outer frame (400) is installed inside the door body. A groove (410) is provided on the outer side wall of the outer frame (400). The magnetic sealing strip metal frame (200) passes through the groove (410) and is movably inserted into the interior of the outer frame (400). A magnetic strip (500) that attracts the weak magnetic part (110) is inserted inside the outer frame (400).
2. The novel magnetic sealing strip according to claim 1, characterized in that, The top and bottom of the inner side of the magnetic sealing strip metal frame (200) are integrally formed with baffles A (210), and the outer periphery of the slide groove (410) is baffle AA (420), which blocks baffle A (210).
3. The novel magnetic sealing strip according to claim 1, characterized in that, The top and bottom of the inner side of the magnetic strip (500) are integrally formed with baffles BB (510), and the inner side of the outer frame (400) is integrally formed with baffles B (430), which holds baffles BB (510) inside.
4. The novel magnetic sealing strip according to claim 3, characterized in that, The outer frame (400) is a PVC frame or an aluminum alloy frame.
5. The novel magnetic sealing strip according to claim 1, characterized in that, The outer wall of the sealing strip (300) is provided with a serrated groove (310).
6. The novel magnetic sealing strip according to claim 1, characterized in that, The sealing strip (300) is a soft PVC rubber sealing strip.