A combined seal for a door frame

Abstract

The utility model provides a combined sealing strip for door frame belongs to mechanical technical field, it solves the problem of poor sealing effect of existing door frame sealing strip. The combined sealing strip for door frame includes: horizontal sealing strip, is located at the top of door frame, vertical sealing strip, is located at the side of door frame, corner sealing strip is located at the corner of door frame, and corner sealing strip is closely connected with vertical sealing strip, horizontal sealing strip respectively, and corner sealing strip includes mutually perpendicular set's horizontal part, vertical part, and the length of horizontal part is greater than the length of vertical part. The utility model has the characteristics that the sealing effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a combined sealing strip for door frames, particularly a combined sealing strip for door frames used at the corners of door frames. Background Technology

[0002] Door and window sealing strips are a type of sealing strip mainly used in architectural decorative doors and windows such as PVC, aluminum alloy, and wooden doors and windows. They are generally extruded from materials such as PVC, modified PVC, EPDM, elastomer sealing strips, and silicone. Door and window sealing strips are divided into three main categories based on their application: glass sealing strips, door leaf and frame sealing strips, and weatherstripping. Glass sealing strips are used to seal between the glass and the door leaf / frame; door leaf and frame sealing strips are mainly used to seal between the door panel and the door frame; and weatherstripping is mainly used to seal between the frame and the door leaf.

[0003] In the production and installation of doors and windows, sealing strips are an essential accessory that plays a crucial role. The key to doors and windows lies in their sealing, and sealing strips play an important role in waterproofing, sealing, and energy conservation. They also provide sound insulation, dustproofing, frost protection, and heat insulation, and have high tensile strength, good elasticity, as well as temperature resistance and aging resistance.

[0004] In practical applications, the sealing strips on door frames are usually composed of several sealing strips combined together, or made into a one-piece structure through a process. The sealing strips at the corners of the door frame need to be connected with the sealing strips on both sides. However, the existing corner sealing strip structure is not reasonably designed. The two ends are usually designed with the same structure, which is not enough to seal when connected with other sealing strips, and air leakage is easy to occur.

[0005] In summary, to address the shortcomings of existing door frame sealing strip structures, this utility model designs a combined sealing strip for door frames with a reasonable structure and good sealing performance. Summary of the Invention

[0006] To address the problems existing in the prior art, this utility model provides a combined sealing strip for door frames with a reasonable structure and good sealing performance.

[0007] The objective of this utility model can be achieved through the following technical solution: a combined sealing strip for door frames, comprising:

[0008] The horizontal sealing strip is located at the top of the door frame;

[0009] Vertical sealing strip, located on the side of the door frame;

[0010] An angle sealing strip is located at the corner of the door frame and is tightly connected to the vertical sealing strip and the horizontal sealing strip respectively. The angle sealing strip includes a horizontal part and a vertical part that are perpendicular to each other, and the length of the horizontal part is greater than the length of the vertical part.

[0011] As a further improvement to this case, the cross-section of the horizontal part is adapted to the cross-section of the horizontal sealing strip, and both cross-sections are roughly set in an "I" shape.

[0012] As a further improvement in this case, several square through holes are provided through the horizontal sealing strip, and a square protrusion is provided on the horizontal part facing the side of the horizontal sealing strip, and the square protrusion is embedded in one of the square through holes.

[0013] As a further improvement to this case, the cross-section of the vertical part is adapted to the cross-section of the vertical sealing strip, a first arc surface is provided on one side of the vertical sealing strip, and a second arc surface is provided on the vertical part corresponding to the first arc surface.

[0014] As a further improvement in this case, several irregularly shaped through holes are opened through the vertical sealing strip, and an irregularly shaped protrusion is provided on the side of the vertical part facing the vertical sealing strip, and the irregularly shaped protrusion is embedded in one of the irregularly shaped through holes.

[0015] Compared with the prior art, the present invention has a reasonable structural design. By setting different structures on both sides of the corner sealing strip, the corner sealing strip is tightly connected with the vertical sealing strip and the horizontal sealing strip respectively, thereby achieving good sealing performance. Attached Figure Description

[0016] Figure 1 This is an installation diagram of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model.

[0018] Figure 3 yes Figure 2 A schematic diagram of the explosion structure.

[0019] Figure 4 This is a schematic diagram of the corner sealing strip in this utility model.

[0020] Figure 5 yes Figure 4 A structural diagram from another perspective.

[0021] In the figure, 10 is the horizontal sealing strip; 11 is the square through hole; 20 is the vertical sealing strip; 21 is the irregular through hole; 22 is the first arc surface; 30 is the corner sealing strip; 31 is the horizontal part; 311 is the square protrusion; 32 is the vertical part; 321 is the irregular protrusion; and 322 is the second arc surface. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0023] like Figures 1 to 5 As shown, the combined sealing strip for this door frame includes:

[0024] Vertical sealing strip 20 is located on the side of the door frame;

[0025] Horizontal sealing strip 10 is located at the top of the door frame;

[0026] An angle sealing strip 30 is located at the corner of the door frame and is tightly connected to the vertical sealing strip 20 and the horizontal sealing strip 10 respectively. The angle sealing strip 30 includes a horizontal part 31 and a vertical part 32 that are perpendicular to each other, and the length of the horizontal part 31 is greater than the length of the vertical part 32.

[0027] Door frame sealing strips are usually composed of several sealing strips combined together, or made into a one-piece structure through a process. The sealing strip at the corner of the door frame needs to be connected with the sealing strips on both sides. However, the existing corner sealing strip structure is not well designed. The two ends are usually designed with the same structure, which is not enough to seal when connected with other sealing strips, and is prone to air leakage.

[0028] Therefore, this utility model provides a combined sealing strip for door frames. By setting different structures on both sides of the corner sealing strip 30, the corner sealing strip 30 is tightly connected to the vertical sealing strip 20 and the horizontal sealing strip 10 respectively, thereby achieving good sealing performance.

[0029] Specifically, the corner sealing strip 30 is composed of a horizontal part 31 and a vertical part 32 that are perpendicular to each other, and the length of the horizontal part 31 is greater than the length of the vertical part 32. The corner sealing strip 30 is arranged in a horizontal "L" shape, which facilitates connection with the vertical sealing strip 20 and the horizontal sealing strip 10.

[0030] Preferably, the cross-section of the horizontal portion 31 is adapted to the cross-section of the horizontal sealing strip 10, and both cross-sections are approximately arranged in an "I" shape.

[0031] The cross-section of the horizontal sealing strip 10 is roughly "I" shaped. In this embodiment, the cross-section of the horizontal part 31 is preferably also "I" shaped, so that when the horizontal part 31 is connected to the horizontal sealing strip 10, the outer surface fits well, and it is also conducive to adapting to the structure of the door frame and improving the sealing performance.

[0032] Furthermore, a plurality of square through holes 11 are provided through the horizontal sealing strip 10, and a square protrusion 311 is provided on the side of the horizontal part 31 facing the horizontal sealing strip 10, and the square protrusion 311 is embedded in one of the square through holes 11.

[0033] Multiple square through holes 11 are opened inside the horizontal sealing strip 10. Here, it is preferable that the horizontal part 31 is provided with a square protrusion 311 on the side facing the horizontal sealing strip 10 and is embedded in one of the square holes, so as to ensure that the horizontal part 31 and the horizontal sealing strip 10 are tightly connected, which is beneficial to improving the connection sealing performance.

[0034] The square protrusion 311 and the square through hole 11 can be a clearance fit, which facilitates disassembly and assembly.

[0035] Preferably, the cross-section of the vertical part 32 is adapted to the cross-section of the vertical sealing strip 20, a first arc surface 22 is provided on one side of the vertical sealing strip 20, and a second arc surface 322 corresponding to the first arc surface 22 is provided on the vertical part 32.

[0036] When the vertical part 32 is connected to the vertical sealing strip 20, the vertical part 32 abuts against a portion of the end face of the vertical sealing strip 20. The vertical part 32 as a whole is adapted to a portion of the structure of the vertical sealing strip 20. Here, it is preferable to provide a second arc surface 322 on the vertical part 32 that corresponds to the first arc surface 22 on the vertical sealing strip 20. This is beneficial for the vertical part 32 and a portion of the outer surface of the vertical sealing strip 20 to fit well together and improve the sealing performance.

[0037] Furthermore, the vertical sealing strip 20 has multiple irregularly shaped through holes 21, and the vertical part 32 is provided with an irregularly shaped protrusion 321 on the side facing the vertical sealing strip 20, and the irregularly shaped protrusion 321 is embedded in one of the irregularly shaped through holes 21.

[0038] The vertical sealing strip 20 also has multiple irregularly shaped through holes 21. In this embodiment, the irregularly shaped through holes 21 can preferably include triangular, semi-circular or trapezoidal shapes, etc. In practice, they can be set according to the specific structure of the vertical sealing strip 20.

[0039] Preferably, the bottom of the vertical part 32 is provided with a triangular irregular protrusion 321, which is embedded in the triangular irregular through hole 21 on the vertical sealing strip 20. In this embodiment, the irregular protrusion 321 and the irregular through hole 21 can be gap-fitted, which ensures a tight connection without affecting the ventilation inside the vertical sealing strip 20.

[0040] It is worth mentioning that multiple through holes are provided in the horizontal sealing strip 10 and the vertical sealing strip 20. After the corner sealing strip 30 is tightly connected to the two, it will not affect the ventilation inside the horizontal sealing strip 10 and the vertical sealing strip 20.

[0041] The door frame uses a reasonable combination sealing strip structure. By setting different structures on both sides of the corner sealing strip 30, the corner sealing strip 30 is tightly connected to the vertical sealing strip 20 and the horizontal sealing strip 10 respectively, thereby achieving good sealing performance.

[0042] The embodiments described herein are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or additions to the specific embodiments described, or substitutions made by those skilled in the art, should be covered within the scope of protection of the present invention.

Claims

1. A modular weatherstrip for a door jamb, characterized by include: The horizontal sealing strip is located at the top of the door frame; Vertical sealing strip, located on the side of the door frame; An angle sealing strip is located at the corner of the door frame and is tightly connected to the vertical sealing strip and the horizontal sealing strip respectively. The angle sealing strip includes a horizontal part and a vertical part that are perpendicular to each other, and the length of the horizontal part is greater than the length of the vertical part.

2. A composite weatherstrip for a door frame according to claim 1, wherein The cross-section of the horizontal part is adapted to the cross-section of the horizontal sealing strip, and both cross-sections are roughly "I" shaped.

3. A composite weatherstrip for a door frame according to claim 2, wherein Several square through holes are provided inside the horizontal sealing strip, and a square protrusion is provided on the horizontal part facing the side of the horizontal sealing strip, and the square protrusion is embedded in one of the square through holes.

4. A combined sealing strip for a door frame according to claim 1, characterized in that, The cross-section of the vertical part is adapted to the cross-section of the vertical sealing strip. A first arc surface is provided on one side of the vertical sealing strip, and a second arc surface is provided on the vertical part corresponding to the first arc surface.

5. A composite weatherstrip for a door frame according to claim 4, wherein Several irregularly shaped through holes are provided inside the vertical sealing strip, and an irregularly shaped protrusion is provided on the side of the vertical part facing the vertical sealing strip, and the irregularly shaped protrusion is embedded in one of the irregularly shaped through holes.

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