Plastic profile for improving the intermediate seal structure of doors and windows
By introducing an adjustment device into the profiles of doors and windows, the problem of poor sealing caused by the plastic deformation of the sealing strip is solved, and the sealing strip can be flexibly adjusted and its service life extended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN LUMEI BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-26
AI Technical Summary
When existing doors and windows are closed, the sealing strips undergo plastic deformation due to compression and cannot fully rebound, resulting in poor sealing performance.
A plastic profile was designed to improve the sealing structure in the middle of doors and windows. It includes an adjustment device that uses components such as screw rings, screws, and rectangular plates to adjust the position of the sealing strip to fill gaps and improve sealing performance.
It effectively fills the gap between the sealing strip and the profile, reduces plastic deformation, and improves the flexibility and lifespan of the sealing strip.
Smart Images
Figure CN224413438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of profile technology, and in particular to a plastic profile for improving the sealing structure in the middle of doors and windows. Background Technology
[0002] Plastic profiles, simply put, are plastic extruded products with non-circular cross-sections. They can meet complex functional requirements in scenarios such as doors, windows, and building materials through customized cross-section designs.
[0003] Most existing door and window frames are assembled from multiple plastic profiles. Sealing strips are often installed at the contact points between the frames to fill the gaps between the two profiles and achieve a sealing effect. However, when the door or window is closed, the two profile frames will squeeze the sealing strip. After being squeezed for a long time, the polymer chains of the sealing strip will undergo plastic deformation and cannot fully rebound. This will create gaps between the sealing strip and the movable profile frames, affecting the sealing effect. Utility Model Content
[0004] The technical problem this utility model aims to solve is that when doors and windows are closed, the two profile frames will compress the sealing strip, causing the polymer chains of the sealing strip to undergo plastic deformation after being compressed for a long time, making it unable to fully rebound. This results in a gap between the sealing strip and the movable profile frame, affecting the sealing effect.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a plastic profile for improving the sealing structure in the middle of doors and windows, comprising: a profile body, wherein a sealing strip is provided on one side of the profile body, wherein the sealing strip is used to improve the sealing performance of the gap between doors and windows; and an adjustment device, wherein the adjustment device is disposed between the profile body and the sealing strip, wherein the adjustment device is used to adjust the distance between the sealing strip and other profile bodies.
[0006] Preferably, the adjusting device includes: a rectangular tube fixed inside the profile body, wherein a threaded ring is rotatably mounted on one side of the rectangular tube via a bearing; a rectangular plate, the surface of which is slidably connected to the inner wall of the rectangular tube, wherein a screw is rotatably connected to one side of the rectangular plate via a bearing, wherein the surface of the screw is threadedly connected to the inner wall of the threaded ring; and a rubber plate, which is bonded and fixed to the side of the rectangular plate away from the screw by adhesive or tape, wherein the rubber plate is placed inside the rectangular tube, and wherein the rubber plate is fixedly connected to a sealing strip.
[0007] The effect achieved by the above-mentioned components is as follows: By setting an adjustment device, when a gap occurs between the sealing strip and other profiles, the screw ring is first manually rotated. During the rotation, the screw ring drives the screw to move left and right, which in turn pushes the rectangular plate to move. The rectangular plate then pushes the rubber plate away from the screw ring, which in turn pushes the sealing strip to move. This allows the sealing strip to adjust the distance between itself and other profiles through left and right displacement. After the frames of the two profiles are closed, the sealing strip, together with the rubber plate, effectively fills and seals the gap between them. This improves the sealing performance of doors and windows, reduces the possibility of the polymer chains of the sealing strip undergoing plastic deformation after prolonged compression, preventing them from fully rebounding and causing gaps between the sealing strip and the movable profile frame, thus affecting the sealing effect. This improves the flexibility and service life of the sealing strip.
[0008] Preferably, the sealing strip has two support plates symmetrically fixed inside, wherein the support plates are made of rubber and are fixed at an angle.
[0009] The effect achieved by the above components is that by setting up the support plate, the inside of the sealing strip can be supported and reinforced, further increasing the resilience of the sealing strip and improving its service life.
[0010] Preferably, the surface of the screw hole ring is fixed with a plurality of anti-slip strips, and the plurality of anti-slip strips are arranged at equal intervals.
[0011] The effect achieved by the above components is that by setting anti-slip strips, the friction between the surface of the screw hole ring and the hand can be increased, reducing the chance of slipping when manually rotating the screw hole ring.
[0012] Preferably, two pressure rods are symmetrically fixed to the inner wall of the rectangular tube, wherein a semi-circular groove is opened on the side of the pressure rod away from the rectangular tube, and the surface of the pressure rod is in close contact with the surface of the rubber plate.
[0013] The effect achieved by the above components is that by setting the pressure rod, the gap between the inner wall of the rectangular tube and the rubber plate can be filled by squeezing the surface of the rubber plate, thereby increasing the sealing between the rectangular tube and the rubber plate.
[0014] Preferably, the rectangular plate has multiple rubber protrusions symmetrically fixed to its surface, wherein the size and shape of the rubber protrusions are adapted to the size and shape of the inner wall of the semi-circular groove opened on the pressure rod.
[0015] The effect achieved by the above components is that by setting rubber protrusions, the rubber protrusions can be embedded in the semi-circular groove on the pressure rod, completely filling its interior, thereby further increasing the sealing performance between the rubber plate and the rectangular tube.
[0016] Preferably, a leather pad is fixed to the surface of the rectangular tube.
[0017] The effect achieved by the above components is that by setting up the pad, the pad can separate the surface of the rectangular tube from the surface of the sealing strip, reducing the possibility of long-term collision between the sealing strip and the surface of the rectangular tube causing significant wear.
[0018] Preferably, a limiting block is fixed to one side of the rectangular plate, and a sliding groove is provided on the inner wall of the rectangular tube, wherein the limiting block is placed inside the sliding groove to limit the rectangular plate.
[0019] The effect achieved by the above components is as follows: by setting the limiting block, the limiting block can be placed inside the slide groove and slide left and right to assist in limiting the rectangular plate, reducing the shaking of the rectangular plate during movement and affecting the normal sealing between the rubber plate and the rectangular cylinder.
[0020] The beneficial effects of this utility model are:
[0021] By setting an adjustment device, the gap between the sealing strip and the movable profile frame can be adjusted by left and right displacement. After the movable profile frame is closed, the sealing strip always maintains a tight fit with its surface. This reduces the possibility of the polymer chains of the sealing strip undergoing plastic deformation due to prolonged compression, which prevents it from fully rebounding and creating gaps between the sealing strip and the movable profile frame, thus affecting the sealing effect. This improves the flexibility and service life of the sealing strip. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This utility model Figure 1 A schematic diagram of a partial three-dimensional structure;
[0025] Figure 3 This is a partial sectional view of the rectangular tube of this utility model;
[0026] Figure 4 This is a three-dimensional structural diagram of the filler strip of this utility model;
[0027] Figure 5 This utility model Figure 4 Enlarged view of point A;
[0028] Figure 6 This is a three-dimensional structural diagram of the rubber sheet of this utility model.
[0029] Legend: 1. Profile; 2. Sealing strip; 3. Adjustment device; 31. Rectangular tube; 32. Screw ring; 33. Anti-slip strip; 34. Rectangular plate; 35. Screw; 36. Rubber plate; 37. Support plate; 38. Pressure rod; 39. Rubber convex strip; 310. Leather pad; 311. Limiting block; 312. Slide groove. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Figure 1-6 The plastic profile shown is for improving the sealing structure of the middle of doors and windows. It includes: a profile body 1, a sealing strip 2 is provided on one side of the profile body 1, wherein the sealing strip 2 is used to improve the sealing performance of the gap between the door and window; and an adjustment device 3, which is provided between the profile body 1 and the sealing strip 2, wherein the adjustment device 3 is used to adjust the distance between the sealing strip 2 and other profile bodies 1.
[0033] Figure 2-6The adjustment device 3 shown includes: a rectangular cylinder 31, which is fixed inside the profile 1, wherein a threaded ring 32 is rotatably mounted on one side of the rectangular cylinder 31 via a bearing; a rectangular plate 34, the surface of which is slidably connected to the inner wall of the rectangular cylinder 31, wherein a screw 35 is rotatably connected to one side of the rectangular plate 34 via a bearing, wherein the surface of the screw 35 is threadedly connected to the inner wall of the threaded ring 32; and a rubber plate 36, which is bonded and fixed to the side of the rectangular plate 34 away from the screw 35 by adhesive or tape, wherein the rubber plate 36 is placed inside the rectangular cylinder 31, and wherein the rubber plate 36 is fixedly connected to the sealing strip 2. By setting the adjustment device 3, when a gap is generated between the sealing strip 2 and other profiles 1, the threaded ring 32 is first manually rotated to adjust the threaded ring. During rotation, the hole ring 32 drives the screw 35 to move left and right, causing the screw 35 to push the rectangular plate 34 to move. The rectangular plate 34 then pushes the rubber plate 36 away from the screw hole ring 32, causing the rubber plate 36 to push the sealing strip 2 to move. This allows the sealing strip 2 to adjust the distance between itself and other profiles 1 through left and right displacement. After the frames of the two profiles 1 are closed, the sealing strip 2, together with the rubber plate 36, effectively fills and seals the gap between them, thereby improving the sealing performance of doors and windows. This reduces the possibility of the polymer chains of the sealing strip 2 undergoing plastic deformation after prolonged compression, failing to fully rebound and causing gaps between the sealing strip 2 and the frame of the movable profile 1, thus affecting the sealing effect. This improves the flexibility and service life of the sealing strip 2.
[0034] Figure 2-6 The sealing strip 2 shown has two symmetrically fixed support plates 37 inside. The support plates 37 are made of rubber and are fixed at an angle. By setting the support plates 37, the interior of the sealing strip 2 can be supported and reinforced, further increasing the resilience of the sealing strip 2 and improving its service life. The surface of the screw hole ring 32 is fixed with multiple anti-slip strips 33, which are arranged at equal intervals. By setting the anti-slip strips 33, the friction between the surface of the screw hole ring 32 and the hand can be increased, reducing the possibility of slippage when manually rotating the screw hole ring 32.
[0035] Figure 2-6Two pressure rods 38 are symmetrically fixed to the inner wall of the rectangular tube 31 shown. The side of the pressure rod 38 away from the rectangular tube 31 has a semi-circular groove. The surface of the pressure rod 38 is in close contact with the surface of the rubber plate 36. By setting the pressure rod 38, the gap between the inner wall of the rectangular tube 31 and the rubber plate 36 can be filled by squeezing the surface of the rubber plate 36, thereby increasing the sealing between the rectangular tube 31 and the rubber plate 36. A number of rubber protrusions 39 are symmetrically fixed to the surface of the rectangular plate 34. The size and shape of the surface of the rubber protrusions 39 are adapted to the size and shape of the inner wall of the semi-circular groove on the pressure rod 38. By setting the rubber protrusions 39, the rubber protrusions 39 can be embedded into the semi-circular groove on the pressure rod 38 and completely fill its interior, further increasing the sealing between the rubber plate 36 and the rectangular tube 31.
[0036] Figure 2-6 A rubber pad 310 is fixed to the surface of the rectangular tube 31 shown. By setting the rubber pad 310, the surface of the rectangular tube 31 can be separated from the surface of the sealing strip 2, reducing the large wear caused by long-term collision between the sealing strip 2 and the surface of the rectangular tube 31. A limiting block 311 is fixed to one side of the rectangular plate 34. A sliding groove 312 is opened on the inner wall of the rectangular tube 31. The limiting block 311 is placed inside the sliding groove 312 to limit the rectangular plate 34. By setting the limiting block 311, the limiting block 311 can slide left and right inside the sliding groove 312 and provide auxiliary limiting for the rectangular plate 34, reducing the shaking of the rectangular plate 34 during movement and affecting the normal sealing between the rubber plate 36 and the rectangular tube 31.
[0037] Working principle: When a gap occurs between the sealing strip 2 and other profiles 1, the screw ring 32 is first manually rotated. During the rotation, the screw ring 32 drives the screw 35 to move left and right, which in turn pushes the rectangular plate 34 to move. The rectangular plate 34 then pushes the rubber plate 36 away from the screw ring 32, which in turn pushes the sealing strip 2 to move. This allows the sealing strip 2 to adjust the distance between itself and the movable profile 1 through left and right displacement. After the frame of the movable profile 1 is closed, the sealing strip 2 always maintains a tight fit with its surface. Then, it works with the rubber plate 36 to effectively fill and seal the gap between the two, thereby improving the airtightness of the doors and windows.
[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A plastic profile for improving the sealing structure of doors and windows, characterized in that it comprises: A profile (1) is provided with a sealing strip (2) on one side, wherein the sealing strip (2) is used to improve the sealing performance of the gap between the door and window; Adjustment device (3) is provided between the profile (1) and the sealing strip (2), wherein the adjustment device (3) is used to adjust the distance between the sealing strip (2) and other profiles (1).
2. The plastic profile for improving the sealing structure of doors and windows according to claim 1, characterized in that: The adjustment device (3) includes: a rectangular tube (31), which is fixed inside the profile (1), wherein a screw ring (32) is rotatably installed on one side of the rectangular tube (31) through a bearing. A rectangular plate (34) is slidably connected to the inner wall of a rectangular tube (31). A screw (35) is rotatably connected to one side of the rectangular plate (34) via a bearing. The surface of the screw (35) is threadedly connected to the inner wall of a screw hole ring (32). A rubber sheet (36) is bonded and fixed to the side of the rectangular plate (34) away from the screw (35) by adhesive or tape, wherein the rubber sheet (36) is placed inside the rectangular tube (31), and wherein the rubber sheet (36) is fixed to the sealing strip (2).
3. The plastic profile for improving the sealing structure of doors and windows according to claim 2, characterized in that: The sealing strip (2) has two symmetrically fixed support plates (37) inside, wherein the support plates (37) are made of rubber and are fixed at an angle.
4. The plastic profile for improving the sealing structure in the middle of doors and windows according to claim 2, characterized in that: The surface of the screw hole ring (32) is fixed with a plurality of anti-slip strips (33), and the plurality of anti-slip strips (33) are arranged at equal intervals.
5. The plastic profile for improving the sealing structure of doors and windows according to claim 2, characterized in that: The inner wall of the rectangular tube (31) is symmetrically fixed with two pressure rods (38), wherein a semi-circular groove is provided on the side of the pressure rod (38) away from the rectangular tube (31), and the surface of the pressure rod (38) is in close contact with the surface of the rubber plate (36).
6. The plastic profile for improving the sealing structure of doors and windows according to claim 5, characterized in that: The rectangular plate (34) has multiple rubber protrusions (39) symmetrically fixed to its surface, wherein the size and shape of the surface of the rubber protrusions (39) are adapted to the size and shape of the inner wall of the semi-circular groove opened on the pressure rod (38).
7. The plastic profile for improving the sealing structure of doors and windows according to claim 2, characterized in that: A leather pad (310) is fixed to the surface of the rectangular tube (31).
8. The plastic profile for improving the sealing structure of doors and windows according to claim 2, characterized in that: A limiting block (311) is fixed to one side of the rectangular plate (34), and a sliding groove (312) is provided on the inner wall of the rectangular tube (31), wherein the limiting block (311) is placed inside the sliding groove (312) to limit the rectangular plate (34).