Door slot sealing structure

By installing a magnetic seal between the hidden door and the door frame, the problem of poor sealing of the hidden door is solved, achieving good sealing and sound insulation, and improving the quietness of the room.

CN224200547UActive Publication Date: 2026-05-05FUJIAN MINGBO COMML FACILITIES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN MINGBO COMML FACILITIES
Filing Date
2025-04-22
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing hidden door has poor sealing between the door and the door frame, which makes it easy for outside noise to enter the room and affect the quiet environment.

Method used

A magnetic sealing element is installed between the hidden door and the door frame, including a first magnetic sealing strip and a second magnetic sealing strip. The two are distributed oppositely and magnetically attached when the door is closed. The combination of rigid and flexible covering layers improves the sealing and noise reduction effect.

Benefits of technology

It effectively improves the sealing and sound insulation of the door gaps, while achieving a silent effect when closing the door, thus enhancing the quietness of the indoor environment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224200547U_ABST
    Figure CN224200547U_ABST
Patent Text Reader

Abstract

The utility model relates to a door slot sealing structure which is used for sealing a door slot between an invisible door and a door pocket and structurally comprises a door body and the door pocket, the door body is hinged to the door pocket through a hinge, a door handle is arranged on the door body, and particularly, a magnetic attraction sealing piece is arranged at the position of the door slot between the door body and the door pocket. The magnetic attraction sealing part comprises a first magnetic attraction sealing strip and a second magnetic attraction sealing strip which are opposite in magnetism, the first magnetic attraction sealing strip is arranged on the door body, the second magnetic attraction sealing strip is arranged on the door pocket, and the first magnetic attraction sealing strip and the second magnetic attraction sealing strip are oppositely distributed in parallel and matched in a magnetic attraction mode when the door is closed. The door is reasonable in structural design, the magnetic attraction sealing piece is arranged at the position of the door slot, the first magnetic attraction sealing strip and the second magnetic attraction sealing strip of the magnetic attraction sealing piece are oppositely distributed and matched in a magnetic attraction mode when the door is closed, the sealing effect at the position of the door slot is effectively improved, and then the good sound insulation effect is achieved.
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Description

Technical Field

[0001] This utility model relates to a door gap sealing structure. Background Technology

[0002] Home building materials are essential for home renovation and represent a mature industry. These materials include ceilings, tiles, doors, windows, locks, glass, lighting fixtures, flooring, bathroom and kitchen fixtures, and wallpaper. Among these, concealed doors are favored for their aesthetic appeal. Concealed doors, visually speaking, blend seamlessly with the wall, creating a more unified and cohesive design. However, existing concealed doors often have gaps between the door and the frame, resulting in inadequate sealing when closed. This prevents proper isolation between the room and the outside world, allowing external noise to easily enter and disturb the occupants. Therefore, improving the sealing performance of concealed doors when closed is a crucial technical challenge that needs to be addressed. Utility Model Content

[0003] The purpose of this utility model is to provide a door gap sealing structure that is reasonably designed and improves the sealing performance when the door is closed.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a door gap sealing structure, including a door body and a door frame, wherein a magnetic sealing element is provided at the door gap between the door body and the door frame, the magnetic sealing element including a first magnetic sealing strip and a second magnetic sealing strip with opposite magnetic properties, the first magnetic sealing strip being provided on the door body, and the second magnetic sealing strip being provided on the door frame, wherein when the door is closed, the first magnetic sealing strip and the second magnetic sealing strip are oppositely distributed and magnetically attracted to each other.

[0005] Furthermore, the door body includes a rectangular aluminum alloy door frame and panels disposed at the front and rear ends of the aluminum alloy door frame. A first magnetic sealing strip is vertically disposed at both the left and right ends of the aluminum alloy door frame; a second magnetic sealing strip is vertically disposed at both the left and right ends of the door frame.

[0006] Furthermore, the aluminum alloy door frame includes a pair of vertical door profiles distributed on the left and right, with horizontal door profiles connecting the upper and lower ends of the pair of vertical door profiles. The front end of each pair of vertical door profiles is provided with a first snap-fit ​​groove extending vertically, and the first magnetic sealing strip is disposed in the first snap-fit ​​groove. The door frame includes a pair of door frame profiles distributed on the left and right, with a second snap-fit ​​groove provided on each pair of door frame profiles, and the second magnetic sealing strip is disposed in the second snap-fit ​​groove.

[0007] Furthermore, one end of the first magnetic sealing strip extends out of the first snap-fit ​​groove and is provided with a first magnetic inclined surface; one end of the second magnetic sealing strip extends out of the second snap-fit ​​groove and is provided with a second magnetic inclined surface. When the door is closed, the second magnetic inclined surface is parallel to the first magnetic inclined surface and magnetically engages with it.

[0008] Furthermore, both sides of the first card slot are provided with a first card arm extending vertically; both sides of the first magnetic sealing strip are provided with a first limiting groove that cooperates with the first card arm; both sides of the second card slot are provided with a second card arm extending vertically; both sides of the second magnetic sealing strip are provided with a second limiting groove that cooperates with the second card arm.

[0009] Furthermore, the left and right ends of the horizontal door profile are symmetrically provided with first splicing bevels, and the upper and lower ends of the vertical door profile are symmetrically provided with second splicing bevels. The upper and lower ends of the vertical door profile are spliced ​​together with the first splicing bevels of the horizontal door profile through the second splicing bevels. The horizontal door profile and the vertical door profile are connected at the splice point by connectors.

[0010] Furthermore, the first splicing slope is provided with at least one horizontal slot, and the left and right ends of the front side of the horizontal door profile are provided with first connecting holes communicating with the horizontal slot; the second splicing slope is provided with at least one vertical slot, and the upper and lower ends of the front side of the vertical door profile are provided with second connecting holes communicating with the vertical slot; the connector includes at least one right-angled connecting block, the horizontal side of the connecting block is inserted into the horizontal slot and locked together with the horizontal door profile by a first fastener passing through the first connecting hole; the vertical side of the connecting block is inserted into the vertical slot and locked together with the vertical door profile by a second fastener passing through the second connecting hole.

[0011] Furthermore, the bottom of the horizontal door profile between the lower ends of a pair of vertical door profiles is integrally formed with an installation groove, and a door bottom seal is provided in the installation groove.

[0012] Furthermore, the first magnetic sealing strip includes a first soft magnetic strip, the outer side of which is covered with a rigid covering layer; the second magnetic sealing strip includes a second soft magnetic strip, the outer side of which is covered with a flexible covering layer.

[0013] Furthermore, the rigid covering layer is made of PVC; the flexible covering layer is made of EPMD foam material.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention has a reasonable structural design. By setting a magnetic sealing element at the door gap, the first magnetic sealing strip and the second magnetic sealing strip of the magnetic sealing element are oppositely distributed and magnetically attracted when the door is closed, which effectively improves the sealing effect at the door gap and thus achieves a good sound insulation effect. At the same time, the first magnetic sealing strip and the second magnetic sealing strip are in a rigid and flexible state, respectively, which not only improves the tightness of their fit, but also achieves quiet closing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 yes Figure 1 Enlarged diagram of point A in the diagram;

[0017] Figure 3 This is a top view of an embodiment of the present invention.

[0018] Figure 4 yes Figure 3 Enlarged diagram of point B in the image;

[0019] Figure 5 This is a three-dimensional structural diagram (partial exploded view) of the aluminum alloy door frame in an embodiment of this utility model.

[0020] Figure 6 yes Figure 5 Enlarged diagram of point C in the diagram;

[0021] Figure 7 This is a cross-sectional schematic diagram of the door frame profile in an embodiment of this utility model;

[0022] Figure 8 This is a cross-sectional schematic diagram of the vertical door profile in an embodiment of this utility model;

[0023] Figure 9 This is a three-dimensional structural diagram of the horizontal door profile located at the top in an embodiment of this utility model. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 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.

[0026] like Figures 1-9 As shown, this utility model discloses a door gap sealing structure for sealing the gap between a concealed door and its frame. The structure includes a door body 1 and a door frame 2. The door body is hinged to the door frame. The door body 1 has a door handle 3. Specifically, a magnetic sealing element 9 is provided at the door gap 4 between the door body 1 and the door frame 2. The magnetic sealing element 9 includes a first magnetic sealing strip 5 and a second magnetic sealing strip 6 with opposite magnetic properties. The first magnetic sealing strip 5 is located on the door body 1, and the second magnetic sealing strip 6 is located on the door frame 2. When the door is closed, the first magnetic sealing strip 5 and the second magnetic sealing strip 6 are oppositely distributed and magnetically attracted to each other. By providing a magnetic sealing element at the door gap, and ensuring that the first and second magnetic sealing strips are oppositely distributed and magnetically attracted to each other when the door is closed, the sealing effect at the door gap is effectively improved, thereby achieving a good sound insulation effect.

[0027] In this embodiment, the door body 1 includes a rectangular aluminum alloy door frame 7 and panels 8 disposed at the front and rear ends of the aluminum alloy door frame 7. The panels serve as a decorative layer for the entire door body and can be replaced as needed. A first magnetic sealing strip 5 is vertically disposed at both the left and right ends of the aluminum alloy door frame 7. A second magnetic sealing strip 6 is vertically disposed at both the left and right ends of the door frame 2. Specifically, the aluminum alloy door frame 7 includes a pair of left and right vertical door profiles 10. A horizontal door profile 11 connects the upper and lower ends of the pair of vertical door profiles 10. Several horizontal reinforcing rods 12 are evenly distributed from top to bottom between the pair of vertical door profiles 10. The horizontal reinforcing rods are made of composite steel. The door frame 2 includes a pair of left and right door frame profiles 13.

[0028] In this embodiment, for sealing the door gaps between the left and right ends of the concealed door and the left and right ends of the door frame, specifically: Each of the opposite ends of the front ends of a pair of vertical door profiles 10 is provided with a horizontal V-shaped first sealing mounting part 14. Each of the first sealing mounting parts 14 at the front ends of the pair of vertical door profiles 10 is provided with a vertically extending first snap-fit ​​groove 15. The first snap-fit ​​grooves at the front ends of the pair of vertical door profiles are distributed on the left and right sides of the panel, and the first magnetic sealing strip 5 is embedded in the first snap-fit ​​groove 15. Each of the adjacent ends of the front ends of a pair of door frame profiles 13 is provided with a horizontal L-shaped second sealing mounting part 16. Each of the second sealing mounting parts 16 on the adjacent side of the front ends of the pair of door frame profiles 13 is provided with a second snap-fit ​​groove 17, and the second magnetic sealing strip 6 is embedded in the second snap-fit ​​groove 17. When the door is closed, the positions of the first and second snap-fit ​​grooves on the same side correspond.

[0029] In this embodiment, one end of the first magnetic sealing strip 5 extends out of the first latching groove 15 and is provided with a first magnetic inclined surface 18, while the other end of the first magnetic sealing strip is embedded in the first latching groove; one end of the second magnetic sealing strip 6 extends out of the second latching groove 17 and is provided with a second magnetic inclined surface 19, while the other end of the second magnetic sealing strip is embedded in the second latching groove. When the door is closed, the second magnetic inclined surface 19 is parallel to the first magnetic inclined surface 18 and magnetically engages with it. Preferably, the inclination angle of both the first and second magnetic inclined surfaces is 30 degrees.

[0030] In this embodiment, the first latching groove 15 has a first latching arm 20 extending vertically on both opposite sides; the first magnetic sealing strip 5 has a first limiting groove 21 that cooperates with the first latching arm 20 on both sides; the second latching groove 17 has a second latching arm 22 extending vertically on both opposite sides; and the second magnetic sealing strip 6 has a second limiting groove 23 that cooperates with the second latching arm 22 on both sides.

[0031] It should be noted that the door gap sealing structure in this embodiment is for sealing the gaps between the left and right ends of the concealed door and the left and right ends of the door frame. For sealing the top of the door body and the door frame, a magnetic seal can also be used (i.e., forming seals on the top, left, and right door gaps). Its sealing structure is the same as the door gap sealing method on the left and right sides of the door body, and will not be repeated here. As for sealing the bottom of the door body against the ground, existing door bottom seals can be used directly.

[0032] In this embodiment, in the aluminum alloy door frame, the left and right ends of the horizontal door profile 11 are symmetrically provided with first splicing slopes 24, and the upper and lower ends of the vertical door profile 10 are symmetrically provided with second splicing slopes 25. The second splicing slopes are parallel to each other, and the inclination angle can be 45 degrees. The upper and lower ends of the vertical door profile 10 are spliced ​​together with the first splicing slopes 24 of the horizontal door profile 11 through the second splicing slopes 25. The horizontal door profile 11 and the vertical door profile 10 are connected at the splicing point by connectors.

[0033] In this embodiment, the first splicing slope 24 is provided with two horizontal slots 26 distributed front to back, and the left and right ends of the front side of the horizontal door profile 11 are provided with several first connecting holes 27 communicating with the horizontal slots 26; the second splicing slope 25 is provided with two vertical slots 28 distributed front to back, and the upper and lower ends of the front side of the vertical door profile 10 are provided with several second connecting holes 29 communicating with the vertical slots 28; the connector includes two right-angled connecting blocks 30 distributed front to back, the horizontal side of the connecting block 30 is inserted into the horizontal slot 26 and locked together with the horizontal door profile 11 by a first fastener 31 (e.g., a bolt or screw) passing through the first connecting hole 27; the vertical side of the connecting block 30 is inserted into the vertical slot 28 and locked together with the vertical door profile 10 by a second fastener 32 (e.g., a bolt or screw) passing through the second connecting hole 29. The aluminum alloy door frame is constructed by splicing aluminum alloy door frames, and the vertical and horizontal door profiles are connected by internal connecting blocks, which facilitates assembly and provides excellent concealment of the joints, reducing their visibility. At the same time, the aluminum alloy door frame has high overall structural strength and is not easily deformed.

[0034] In this embodiment, the bottom of the horizontal door profile 11 between the lower ends of a pair of vertical door profiles 10 is integrally formed with an installation groove, and a door bottom seal is provided in the installation groove. Furthermore, the bottom of the installation groove is open, the groove extends horizontally, and its depth extends vertically. Traditionally, door bottom seals are installed by creating a groove at the bottom of the door panel. In this embodiment, the horizontal door profile between the lower ends of a pair of vertical door profiles is integrally formed with an installation groove, allowing the door bottom seal to be directly inserted into the groove during installation without the need for additional drilling, thus improving installation convenience.

[0035] In this embodiment, the first magnetic sealing strip 5 includes a first soft magnetic strip, the outer side of which is covered with a rigid covering layer; the second magnetic sealing strip 6 includes a second soft magnetic strip, the outer side of which is covered with a flexible covering layer. The first magnetic sealing strip and the second magnetic sealing strip are respectively in a rigid and flexible state, which not only improves the tightness of their fit, but also achieves silent closing.

[0036] In this embodiment, the rigid covering layer is made of PVC; the flexible covering layer is made of EPMD foam material.

[0037] The advantages of this utility model are: the door gap is made of PVC-coated soft magnets and EPMD foam-coated soft magnets, which ensures good sealing when the door is closed, good sound insulation, and quiet opening and closing.

[0038] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0039] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0040] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A door gap sealing structure, comprising a door body and a door frame, characterized in that: A magnetic sealing element is provided at the door gap between the door body and the door frame. The magnetic sealing element includes a first magnetic sealing strip and a second magnetic sealing strip with opposite magnetic properties. The first magnetic sealing strip is provided on the door body and the second magnetic sealing strip is provided on the door frame. When the door is closed, the first magnetic sealing strip and the second magnetic sealing strip are oppositely distributed and magnetically attracted to each other.

2. The door seam sealing structure according to claim 1, characterized in that: The door body includes a rectangular aluminum alloy door frame and panels disposed at the front and rear ends of the aluminum alloy door frame. A first magnetic sealing strip is vertically disposed at both the left and right ends of the aluminum alloy door frame. A second magnetic sealing strip is vertically disposed at both the left and right ends of the door frame.

3. The door seam sealing structure according to claim 2, characterized in that: The aluminum alloy door frame includes a pair of vertical door profiles distributed on the left and right. Horizontal door profiles connect the upper and lower ends of the pair of vertical door profiles. Each pair of vertical door profiles has a first snap-fit ​​groove extending vertically at its front end, and a first magnetic sealing strip is disposed within the first snap-fit ​​groove. The door casing includes a pair of door casing profiles distributed on the left and right. Each pair of door casing profiles has a second snap-fit ​​groove, and a second magnetic sealing strip is disposed within the second snap-fit ​​groove.

4. The door seam sealing structure according to claim 3, characterized in that: One end of the first magnetic sealing strip extends out of the first snap-fit ​​groove and is provided with a first magnetic inclined surface; one end of the second magnetic sealing strip extends out of the second snap-fit ​​groove and is provided with a second magnetic inclined surface. When the door is closed, the second magnetic inclined surface is parallel to the first magnetic inclined surface and magnetically engages with it.

5. The door seam sealing structure according to claim 3, characterized in that: Both sides of the first card slot are provided with a first card arm extending vertically; both sides of the first magnetic sealing strip are provided with a first limiting groove that cooperates with the first card arm; both sides of the second card slot are provided with a second card arm extending vertically; both sides of the second magnetic sealing strip are provided with a second limiting groove that cooperates with the second card arm.

6. The door seam sealing structure according to claim 3, characterized in that: The horizontal door profile has symmetrically arranged first splicing bevels at its left and right ends, and the vertical door profile has symmetrically arranged second splicing bevels at its upper and lower ends. The upper and lower ends of the vertical door profile are spliced ​​together with the first splicing bevels of the horizontal door profile through the second splicing bevels. The horizontal door profile and the vertical door profile are connected at the splice point by connectors.

7. The door seam sealing structure according to claim 6, characterized in that: The first splicing slope is provided with at least one horizontal slot, and the left and right ends of the front side of the horizontal door profile are provided with first connecting holes communicating with the horizontal slot; the second splicing slope is provided with at least one vertical slot, and the upper and lower ends of the front side of the vertical door profile are provided with second connecting holes communicating with the vertical slot; the connector includes at least one right-angled connecting block, the horizontal side of the connecting block is inserted into the horizontal slot and locked together with the horizontal door profile by a first fastener passing through the first connecting hole; the vertical side of the connecting block is inserted into the vertical slot and locked together with the vertical door profile by a second fastener passing through the second connecting hole.

8. The door seam sealing structure according to claim 3, characterized in that: A mounting groove is integrally formed at the bottom of the horizontal door profile between the lower ends of a pair of vertical door profiles, and a door bottom seal is provided in the mounting groove.

9. A door seam sealing structure according to any one of claims 1-5, characterized in that: The first magnetic sealing strip includes a first soft magnetic strip, the outer side of which is covered with a rigid covering layer; the second magnetic sealing strip includes a second soft magnetic strip, the outer side of which is covered with a flexible covering layer.

10. A door seam sealing structure according to claim 9, characterized in that: The rigid covering layer is made of PVC; the flexible covering layer is made of EPMD foam material.