Double-door magnetic rubber strip sealing structure
Through the design of magnetic adhesive strips and ultra-thin metal plates, the problem of insufficient gaps and space utilization in the double-opening door seal structure is solved, and efficient sealing and flexible space use are achieved, reducing installation difficulty and maintenance costs.
Patent Information
- Application Number
- CN202422301691.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing double-open door sealing structure has insufficient treatment of gaps and space utilization between door leaf and door frame, resulting in poor sealing effect, especially in large-scale occasions.
The two door leaf sidings are sealed with magnetic adhesive strips, combined with ultra-thin metal plates and magnetic sealing strips, forming a uniformly adsorbed sealing structure, eliminating the gap between the door leaf and the door frame, and there are no columns in the middle of the door frame to enhance the use of space.
It significantly improves sealing performance, reduces air and water leakage, simplifies installation and maintenance, reduces costs, improves durability and service life, and is suitable for occasions with high space requirements.
Smart Images

Figure CN223241346U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sealed doors, in particular to a magnetic rubber strip sealing structure for double doors. Background Art
[0002] Currently, there are two main sealing solutions for double-leaf doors in the market: compression seals and single-sided magnetic seals. While these solutions address the sealing issue to some extent, they both have drawbacks, resulting in suboptimal sealing performance. Compression seals typically utilize a sealing strip installed on the door frame. When the door is closed, the strip is compressed against the door leaf, creating a seal. This design offers the advantage of effectively preventing air and dust leakage. However, larger door leaf areas require a higher compression force, requiring a complex design for the sealing strip and door frame. On larger door leaves, the sealing strip may not be evenly distributed. Single-sided magnetic seals utilize magnetic sealing strips installed on the double leaf to create a seal between the leaf and the door frame. However, single-sided magnetic seals typically require a column in the middle of the door frame, occupying internal space and making them unsuitable for applications requiring greater internal access space. Furthermore, neither compression seals nor single-sided magnetic seals address the "T-shaped" gaps between the leaf and the upper and lower edges of the door frame, resulting in suboptimal sealing performance.
[0003] In order to solve the above problems, the utility model proposes a double-door magnetic strip sealing structure, which uses magnetic sealing strips to seal the overlap of the two door leaves, and uses an ultra-thin overlap plate sealing structure at the "T-shaped" gap between the door leaf and the upper and lower door frames, which greatly improves the sealing effect of the double-door cabinet. Summary of the Invention
[0004] In view of this, the present invention aims to address the deficiencies in the existing technology, and its main purpose is to provide a double-door magnetic strip sealing structure, which can effectively solve the problem of poor gap management in the current double-door cabinets, improve the sealing performance, and at the same time optimize space utilization, reduce costs and enhance overall durability.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A double-door magnetic strip sealing structure includes a cabinet body, a first door leaf and a second door leaf; the cabinet body is provided with a door frame; the first door leaf and the second door leaf are installed on the left and right sides of the door frame so that they can be opened or closed to each other; a first magnetic sealing strip is provided around the outer side of the door frame; the inner side of the first door leaf is sealed with the first magnetic sealing strip, and the side of the first door leaf close to the second door leaf has an overlapping edge; a second magnetic sealing strip is provided around the inner side of the second door leaf, and the second magnetic sealing strip is sealed with the outer side surface of the overlapping edge and the first magnetic sealing strip.
[0007] Preferably, a first profile is provided on the door frame, and the first magnetic sealing strip is squeezed and clamped on the first profile to form a "U"-shaped magnetic sealing surface.
[0008] Preferably, the first profile is mounted on the door frame.
[0009] Preferably, the upper and lower ends of the overlapped edge have metal straps, which are made of ultra-thin metal material. The inner side of the metal strap is adsorbed and sealed with the first magnetic sealing strip, and the outer side of the metal strap is adsorbed and sealed with the second magnetic sealing strip to form a sealing structure.
[0010] Preferably, a second profile is provided on the second door leaf, and the second magnetic sealing strip is squeezed and clamped on the second profile.
[0011] Preferably, the second door leaf has a clamping plate, and the second profile is clamped on the clamping plate.
[0012] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:
[0013] 1. Enhanced sealing performance, solving the gap problem between the door leaf and door frame: This utility model effectively improves the sealing performance between the door leaf and door frame through the innovative magnetic strip attraction design and optimized layout. This structure creates a uniform and tight seal when the door leaf is closed, significantly reducing the ingress of dust and moisture from the air. This solves the problem of insufficient gap management between the door leaf and door frame in existing technologies and achieves a more effective sealing effect.
[0014] 2. Optimized Space Utilization: Compared to traditional single-sided magnetic seals, this design eliminates the need for a central column in the door frame. This optimization improves the efficiency of the cabinet door's access space, making it particularly suitable for applications requiring high interior space, such as large calligraphy and painting cabinets and offices, enhancing the flexibility and practicality of the space.
[0015] 3. Simplified Installation and Maintenance: The magnetic strip seal structure of this utility model features a simplified design, reducing the stringent requirements for installation precision. Compared with traditional compression seals, its installation process is more convenient and less difficult. In addition, this structure is also easier to maintain and replace, further reducing maintenance costs and time.
[0016] 4. Improved durability and service life: Because the magnetic strips are made of wear-resistant and aging-resistant materials and possess permanent magnetism, the sealing system of this utility model has greater durability. The optimized structural design reduces material wear and aging, extending the service life of the entire system. Users can enjoy long-term stable sealing performance and reduce the frequency of replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a three-dimensional schematic diagram of a preferred embodiment of the present invention, in which the first door leaf and the second door leaf are in a closed state;
[0018] Figure 2 This is a cross-sectional view of a preferred embodiment of the present invention in which the first door leaf and the second door leaf are in a closed state;
[0019] Figure 3 yes Figure 2 A magnified schematic diagram of position A in the middle;
[0020] Figure 4 yes Figure 2 A magnified schematic diagram of position B in the middle;
[0021] Figure 5 yes Figure 2 An enlarged schematic diagram of the C position in the middle;
[0022] Figure 6 This is a three-dimensional schematic diagram of a preferred embodiment of the present invention, in which the first door leaf and the second door leaf are in an open state;
[0023] Figure 7 It is a cross-sectional view of the second door leaf in the preferred embodiment of the present utility model;
[0024] Figure 8 yes Figure 7 A magnified schematic diagram of the position D in the middle;
[0025] Figure 9 This is a front view of a preferred embodiment of the present invention, in which the first door leaf and the second door leaf are in a closed state.
[0026] Description of the accompanying drawings:
[0027] 10. Cabinet 11. Door frame
[0028] 12. First magnetic sealing strip 13. First profile
[0029] 20. First door leaf 21. Overlap
[0030] 211, metal plate 30, second door leaf
[0031] 31. Second magnetic sealing strip 32. Second profile
[0032] 33. Pallet DETAILED DESCRIPTION
[0033] Please refer to Figures 1 to 9 As shown, it shows the specific structure of a preferred embodiment of the present invention, including a cabinet body 10, a first door leaf 20 and a second door leaf 30.
[0034] The cabinet 10 includes a door frame 11, with a first magnetic sealing strip 12 disposed around the outer periphery of the door frame 11. In this embodiment, a first profile 13 is provided on the door frame 11, onto which the first magnetic sealing strip 12 is squeezed and clamped, forming a U-shaped magnetic sealing surface. Furthermore, the first profile 13 is clamped onto the door frame 11, making it easy to assemble and disassemble.
[0035] The first door leaf 20 and the second door leaf 30 are mounted on the left and right sides of the door frame 11 so that they can be opened or closed. The first door leaf 20 is sealed with the first magnetic sealing strip 12 on all sides of its inner periphery. The first door leaf 20 has a lap edge 21 on one side near the second door leaf 30. In this embodiment, the lap edge 21 has metal straps 211 at its upper and lower ends. The metal straps 211 are made of ultra-thin metal material, and the inner sides of the metal straps 211 are attracted to and sealed by the first magnetic sealing strip 12.
[0036] A second magnetic sealing strip 31 is provided around the inner side of the second door leaf 30. The second magnetic sealing strip 31 is sealed with the outer side of the overlap 21 and the first magnetic sealing strip 12. In this embodiment, the outer side of the metal overlap plate 211 is adsorbed onto the second magnetic sealing strip 31 to form a sealing structure. In addition, a second profile 32 is provided on the second door leaf 30, and the second magnetic sealing strip 31 is squeezed and clamped onto the second profile 32. In addition, the second door leaf 30 has a clamping plate 33, and the second profile 32 is clamped onto the clamping plate 33, which facilitates disassembly and assembly.
[0037] The method of using this embodiment is described in detail as follows:
[0038] During use, first, close the first door leaf 20. When the first door leaf 20 is closed, its inner periphery and the inner side of the metal strap 211 come into contact with the first magnetic sealing strip 12, forming a sealing surface through magnetic attraction. Next, close the second door leaf 30. When the second door leaf 30 is closed, the upper, lower, and right sides of the second magnetic sealing strip 31 on the second door leaf 30 form a mutually attracted seal with the first magnetic sealing strip 12. At the same time, the left side of the second magnetic sealing strip 31 is attracted to the lap edge 21 and the outer side of the metal strap 211 to form a sealing surface.
[0039] The design focus of this utility model is:
[0040] 1. Enhanced sealing performance, solving the gap problem between the door leaf and door frame: This utility model effectively improves the sealing performance between the door leaf and door frame through the innovative magnetic strip attraction design and optimized layout. This structure creates a uniform and tight seal when the door leaf is closed, significantly reducing the ingress of dust and moisture from the air. This solves the problem of insufficient gap management between the door leaf and door frame in existing technologies and achieves a more effective sealing effect.
[0041] 2. Optimized Space Utilization: Compared to traditional single-sided magnetic seals, this design eliminates the need for a central column in the door frame. This optimization improves the efficiency of the cabinet door's access space, making it particularly suitable for applications requiring high interior space, such as large calligraphy and painting cabinets and offices, enhancing the flexibility and practicality of the space.
[0042] 3. Simplified Installation and Maintenance: The magnetic strip seal structure of this utility model features a simplified design, reducing the stringent requirements for installation precision. Compared with traditional compression seals, its installation process is more convenient and less difficult. In addition, this structure is also easier to maintain and replace, further reducing maintenance costs and time.
[0043] 4. Improved durability and service life: Because the magnetic strips are made of wear-resistant and aging-resistant materials and possess permanent magnetism, the sealing system of this utility model has greater durability. The optimized structural design reduces material wear and aging, extending the service life of the entire system. Users can enjoy long-term stable sealing performance and reduce the frequency of replacement and maintenance.
[0044] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.
Claims
1. A double-door magnetic strip sealing structure, comprising a cabinet body, a first door leaf, and a second door leaf; the cabinet body having a door frame; the first door leaf and the second door leaf being mounted on the left and right sides of the door frame so as to be openable or closable relative to each other; characterized in that: A first magnetic sealing strip is provided around the outer side of the door frame; the inner side of the first door leaf is sealed with the first magnetic sealing strip, and the first door leaf has an overlapping edge on one side close to the second door leaf; a second magnetic sealing strip is provided around the inner side of the second door leaf, and the second magnetic sealing strip is sealed with the outer side surface of the overlapping edge and the first magnetic sealing strip.
2. The double-door magnetic strip sealing structure according to claim 1, characterized in that: The door frame is provided with a first profile, and the first magnetic sealing strip is squeezed and clamped on the first profile to form a "U"-shaped magnetic sealing surface.
3. The double-door magnetic strip sealing structure according to claim 2, characterized in that: The first profile is clamped on the door frame.
4. The double-door magnetic strip sealing structure according to claim 1, characterized in that: The upper and lower ends of the overlapped edge are provided with metal overlapped plates, which are made of ultra-thin metal material. The inner side of the metal overlapped plates is adsorbed and sealed with the first magnetic sealing strip, and the outer side of the metal overlapped plates is adsorbed and sealed with the second magnetic sealing strip to form a sealing structure.
5. The double-door magnetic strip sealing structure according to claim 1, characterized in that: The second door leaf is provided with a second profile, and the second magnetic sealing strip is squeezed and clamped on the second profile.
6. The double-door magnetic strip sealing structure according to claim 5, characterized in that: The second door leaf is provided with a clamping plate, and the second profile is clamped on the clamping plate.