Door frame sealing rubber strip
By setting a raised portion and a large inner arc chamfer at the end of the sealing strip and combining it with a magnetic strip, the gap problem of traditional sealing strips when they are not squeezed into place is solved, and a better sealing effect is achieved.
Patent Information
- Application Number
- CN202423001922.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-06
AI Technical Summary
If traditional door frame sealing strips are not squeezed into place during use, gaps will easily appear, affecting the sealing performance.
A raised portion and a large inner arc chamfer are provided at the end of the sealing strip, and a magnetic strip is provided inside to enhance the fit and adsorption between the sealing strip and the door frame.
The fit and sealing of the sealing strip are improved, the tightness of the connection with the door frame is enhanced, and the appearance of gaps is avoided.
Smart Images
Figure CN223482555U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing strip technology, and in particular to a door frame sealing strip. Background Art
[0002] Door frame sealing strips are mainly used for sealing between door panels and door frames, and are an essential accessory in door and window production and installation. The sealing strips are generally installed on the contact surfaces of the door frame and door leaf to ensure a complete fit when the door is closed. During installation, the sealing strips usually need to be embedded into the profile grooves in the correct direction and position to ensure that they can achieve the best sealing effect.
[0003] In existing technologies, traditional door frame sealing strips mainly rely on the elastic properties of their own materials. When the sealing strip is compressed between the door frame and the door leaf, it undergoes elastic deformation and can fill the gap between the door frame and the door leaf, thus achieving a sealing effect. However, this makes the sealing strip's sealing between the door frame and the door leaf limited. If the sealing strip is not compressed properly during use, gaps will appear in the filling area, affecting the sealing performance between the door frame and the door leaf. Therefore, a new type of door frame sealing strip is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a door frame sealing strip to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a door frame sealing strip, comprising:
[0006] A sealing strip, wherein the sealing strip has an assembly hole for mounting the sealing strip on a door frame, and the end of the sealing strip has an outwardly protruding part, wherein a large inner arc chamfer is formed between the protruding part and the outer wall of the sealing strip.
[0007] A magnetic strip is disposed inside the sealing strip, and one side of the magnetic strip is connected to the mounting hole.
[0008] Preferably, the sealing strip has a triangular cross-section that is narrower at the top and wider at the bottom, and the end of the sealing strip away from the protrusion is stretched outward, and the thickness of the end of the sealing strip away from the protrusion gradually decreases in the direction away from the protrusion.
[0009] Preferably, the outer wall of the mounting hole and the outer wall of the protrusion are transitioned by a large inner arc chamfer, and the large inner arc chamfer is greater than 90 degrees.
[0010] Preferably, the sealing strip is made of either PVC or silicone rubber.
[0011] Preferably, the thickness of the sealing strip is 3mm-8mm, and the thickness of the magnetic strip is 1mm-2mm.
[0012] Preferably, the mounting hole is continuously bent, one end of the mounting hole is connected to the end of the protrusion away from the large inner arc chamfer, and the other end of the mounting hole is connected to one side of the magnetic strip.
[0013] The technical effects and advantages of this utility model are:
[0014] This invention features an integrally formed protrusion at the end of the sealing strip, with a large inner arc chamfer transition between the protrusion and the sealing strip. This allows for greater compression space when the sealing strip is squeezed on the door frame, resulting in a tighter and better fit. Furthermore, the magnetic strip enhances the adhesion between the sealing strip and the door frame, improving the sealing performance and overall sealing effectiveness. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the sealing strip of this utility model.
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the end face of the sealing strip of this utility model.
[0017] In the diagram: 100, sealing strip; 101, assembly hole; 102, large inner arc chamfer; 103, protrusion; 200, magnetic strip. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] This utility model provides, for example Figures 1-2The illustrated door frame sealing strip includes a sealing strip 100 with mounting holes 101 for mounting the sealing strip 100 onto the door frame. The mounting holes 101 communicate with both end faces of the sealing strip 100, allowing for proper positioning and installation. The sealing strip 100 has an outwardly protruding protrusion 103 at its end, forming a large inner arc chamfer 102 between the protrusion 103 and the outer wall of the sealing strip 100. This large inner arc chamfer 102 is an obtuse angle. By increasing the chamfer angle at the inward bend of the sealing strip 100, the sealing strip 100 can have greater compression space when compressed. This allows for better adhesion of the sealing strip 100, resulting in a tighter fit between it and the door frame and door leaf. This enhances the sealing performance at the gaps between the door frame and door leaf. The magnetic strip 200 is located inside the sealing strip 100, with one side of the magnetic strip 200 connected to the mounting hole 101. By assembling the magnetic strip 200 connected to the mounting hole 101 inside the sealing strip 100, when the sealing strip 100 is installed on a metal door frame with magnetic conductivity, the magnetic attraction of the magnetic strip 200 increases the adhesion between the sealing strip 100 and the door frame, making the connection between the sealing strip 100 and the door frame tighter and further improving the sealing performance of the sealing strip 100.
[0020] Furthermore, the cross-section of the sealing strip 100 is triangular, narrower at the top and wider at the bottom. The end face of the sealing strip 100 that mates with the protrusion 103 resembles a shoe mold, making the sealing strip 100 in this embodiment wider and thicker overall, allowing for a tighter fit with the corresponding door frame and meeting the needs of door frames where smaller, narrower sealing strips cannot be fitted. The outer wall of the mounting hole 101 transitions to the outer wall of the protrusion 103 with a large inner arc chamfer 102, which is greater than 90 degrees. This large inner arc chamfer 102 is an obtuse angle, allowing the sealing strip 100 to have greater compression space at this point, resulting in better fit and higher sealing performance during compression. The end of the sealing strip 100 away from the protrusion 103 is stretched outwards, and the thickness of the end of the sealing strip 100 away from the protrusion 103 gradually decreases in the direction away from the protrusion 103. The small size allows the end of the sealing strip 100 furthest from the protrusion 103 to have greater thickness and width, meeting the needs of door frames requiring greater thickness and width. This avoids problems such as excessive gaps and insufficient tightness after assembly with the door frame due to the sealing strip 100 being too thin and wide, thus reducing sealing performance. The mounting hole 101 is continuously bent, with one end connected to the end of the protrusion 103 away from the large inner arc chamfer 102, and the other end connected to one side of the magnetic strip 200. The end face of the protrusion 103 is triangular, and one side has an outwardly extending strip. The mounting hole 101 connects to the outside along the strip-shaped position of the side wall of the protrusion 103, allowing the mounting hole 101 on the sealing strip 100 to have better fit with the door frame to be installed, thus making the installation of the sealing strip 100 on the door frame more suitable.
[0021] In a preferred embodiment, the sealing strip 100 is made of either PVC or silicone rubber. Using PVC (polyvinyl chloride) not only helps reduce costs, but PVC is also easy to mold and process, and can be recycled and reused, achieving energy conservation and environmental protection. Silicone rubber, on the other hand, has excellent high and low temperature resistance due to its main chain consisting of alternating silicon and oxygen atoms, with two organic groups typically attached to each silicon atom. This extends the service life of the sealing strip 100. Furthermore, the sealing strip 100 made of silicone rubber has good weather resistance and can operate in environments as low as -55°C. Working at 80℃, it exhibits excellent resistance to high and low temperatures, and its breathability, insulation, and resilience are all significantly improved, enhancing the quality of the sealing strip 100. The thickness of the sealing strip 100 is 3mm-8mm, and the appropriate manufacturing thickness and width can be selected according to the actual usage environment, enabling the sealing strip 100 to meet the needs of various door frames and enhancing its adaptability. The thickness of the magnetic strip 200 is 1mm-2mm, with 1.5mm being optimal, which can enhance the fit between the magnetic strip 200 and the metal door frame while reducing the impact on the overall structural strength of the sealing strip 100.
[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A door frame sealing strip, characterized in that, include: A sealing strip (100) is provided with an assembly hole (101) inside the sealing strip (100). The assembly hole (101) is used for assembling the sealing strip (100) on the door frame. The end of the sealing strip (100) is provided with an outwardly protruding part (103). A large inner arc chamfer (102) is formed between the protruding part (103) and the outer wall of the sealing strip (100). A magnetic strip (200) is disposed inside the sealing strip (100), and one side of the magnetic strip (200) is connected to the assembly hole (101).
2. The door frame sealing strip according to claim 1, characterized in that, The sealing strip (100) has a triangular cross-section that is narrower at the top and wider at the bottom. The end of the sealing strip (100) away from the protrusion (103) is stretched outward, and the thickness of the end of the sealing strip (100) away from the protrusion (103) gradually decreases in the direction away from the protrusion (103).
3. A door frame sealing strip according to claim 2, characterized in that, The outer wall of the assembly hole (101) and the outer wall of the protrusion (103) are transitioned by a large inner arc chamfer (102), and the large inner arc chamfer (102) is greater than ninety degrees.
4. A door frame sealing strip according to claim 3, characterized in that, The sealing strip (100) is made of either PVC or silicone rubber.
5. A door frame sealing strip according to claim 4, characterized in that, The thickness of the sealing strip (100) is 3mm-8mm, and the thickness of the magnetic strip (200) is 1mm-2mm.
6. A door frame sealing strip according to claim 5, characterized in that, The assembly hole (101) is continuously bent. One end of the assembly hole (101) is connected to the side of the protrusion (103) away from the large inner arc chamfer (102). The other end of the assembly hole (101) is connected to one side of the magnetic strip (200).