Plastic profile for improving middle sealing structure of door and window

Abstract

The utility model discloses a plastic profile for improving a middle sealing structure of a door and window, which comprises a buckle cover profile made of plastics, an adhesive tape notch is arranged on the left side of the upper end of the buckle cover profile, a first clamping pin is arranged on the right side of the lower end of the buckle cover profile, and the first clamping pin is clamped with a main profile of the door and window. The buckle cover profile made of plastic is assembled with the main profile through the first clamping foot, the soft and hard co-extrusion foaming rubber strip with the closed cavity is matched to extrude the bottom face of a U-shaped groove of a window sash, so that the effective contact area and leakproofness of middle sealing are guaranteed, and the middle sealing area of the door and window can be effectively increased; the soft and hard co-extrusion foaming adhesive tape made of ethylene-propylene-diene monomer foaming strips is used, the effective lap joint length after installation can reach 7.5 mm or above, effectiveness and leakproofness of middle sealing of a finished window are effectively improved, meanwhile, the interior of the foaming end of the adhesive tape is of a cavity structure, extrusion force generated when a frame, a stile and a sash are closed can be greatly reduced due to the excellent flexibility of the ethylene-propylene-diene monomer foaming strips, and the service life of the window is prolonged. And opening and closing actions of the window sash are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic profiles, in particular to a plastic profile for improving the middle sealing structure of doors and windows. Background Art

[0002] At present, the mainstream technology of three-seal for doors and windows must improve the structural dimensions of the profile system in order to ensure the effective overlap of the inner, middle and outer parts of the frame and sash. In order to ensure the middle sealing effect, the middle sealing strip must be in effective contact with the sash profile to ensure the height and support of the strip. Nowadays, when using dense EPDM strips, such as Figure 1 , Figure 2 As shown, if the rubber strip is squeezed too much, the reaction force of the support will increase the closing and locking force of the window sash. At the same time, if the rubber strip is deformed or the contact is not tight, it will easily cause a gap in the middle seal of the window sash, resulting in air leakage and affecting the airtightness and thermal insulation performance of the window. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a plastic profile that improves the middle sealing structure of doors and windows, so as to solve the problem that the current rubber strip is too squeezed, which will increase the closing and locking force of the window sash due to the reaction force of the support. At the same time, if the rubber strip is deformed or the contact is not tight, it is easy to cause a gap in the middle seal of the window sash, resulting in air leakage and affecting the airtightness and thermal insulation performance of the window.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a plastic profile for improving the intermediate sealing structure of doors and windows, comprising:

[0005] A buckle cover profile, wherein the buckle cover profile is made of plastic, a rubber strip notch is provided on the left side of the upper end of the buckle cover profile, and a first clamping foot is provided on the right side of the lower end of the buckle cover profile, and the first clamping foot is clamped with the main profile of the door and window;

[0006] A soft and hard co-extruded foamed rubber strip is overlapped on the upper end of the buckle cover profile, and a second clamping foot is provided at the lower end of the soft and hard co-extruded foamed rubber strip. The second clamping foot is inserted into the strip groove and clamped with the buckle cover profile.

[0007] Preferably, a protrusion is provided on the left portion of the buckle cover profile, and a first vertical foot is provided at the lower end of the protrusion, and the lower part of the first vertical foot abuts against the main profile of the door and window.

[0008] Preferably, a horizontal foot is provided at the left end of the buckle cover profile and below the protrusion, and the horizontal foot is against the main profile of the door and window.

[0009] Preferably, a plurality of second vertical feet are provided at the lower end of the buckle cover profile, the second vertical feet are located to the left of the first clamping feet, and the second vertical feet are against the main profile of the door and window.

[0010] Preferably, both left and right sides of the lower part of the second foot are provided with convex blocks which are integral therewith, and the upper ends of the convex blocks are in close contact with the inner top end of the rubber strip groove.

[0011] Preferably, a foaming end of a rubber strip is fixed to the outer side of the upper end of the second clamping foot, and a cavity is arranged at the upper end of the second clamping foot and inside the foaming end of the rubber strip.

[0012] The utility model provides a plastic profile for improving the intermediate sealing structure of doors and windows, which has the following beneficial effects: the buckle cover profile made of plastic is assembled with the main profile through a first clamping foot, and the soft and hard co-extruded foamed rubber strips with a closed cavity are extruded with the bottom surface of the U-groove of the window sash to ensure the effective contact area and tightness of the intermediate seal, which can effectively increase the intermediate sealing area of ​​the doors and windows, and the soft and hard co-extruded foamed rubber strips made of EPDM foamed strips are used. After installation, the effective overlap length can reach more than 7.5 mm, which effectively improves the effectiveness and tightness of the intermediate seal of the window, and at the same time, the foamed end of the rubber strip has a cavity structure inside, and the excellent flexibility of the EPDM foamed strip can greatly reduce the extrusion force when the frame, the stile and the sash are closed, which is convenient for opening and closing the window sash. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the middle sealing strip of the plastic-steel window in the prior art;

[0014] Figure 2 It is a schematic diagram of the overlap of the middle sealing structure of the profile opening sash in the prior art;

[0015] Figure 3 It is an overall schematic diagram of the utility model;

[0016] Figure 4 It is a schematic diagram of the middle sealing structure of the plastic profile at the profile opening section of the utility model.

[0017] In the figure: 1- buckle cover profile, 2- protrusion, 3- first vertical foot, 4- horizontal foot, 5- second vertical foot, 6- first clamping foot, 7- rubber strip notch, 8- soft and hard co-extruded foamed rubber strip, 9- second clamping foot, 10- protrusion, 11- rubber strip foaming end, 12- cavity. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 3-Figure 4 , a plastic profile for improving the intermediate sealing structure of doors and windows, comprising:

[0020] A buckle cover profile 1, the buckle cover profile 1 is made of plastic, a rubber strip notch 7 is provided on the left side of the upper end of the buckle cover profile 1, and a first clamping foot 6 is provided on the right side of the lower end of the buckle cover profile 1, and the first clamping foot 6 is clamped with the main profile of the door and window. When the buckle cover profile 1 is overlapped on the main profile, the first clamping foot 6 of the buckle cover profile 1 is buckled with the clamping groove of the main profile of the door and window, so as to clamp the buckle cover profile 1;

[0021] The left part of the buckle cover profile 1 is provided with a protrusion 2, and the lower end of the protrusion 2 is provided with a first vertical foot 3, and the lower part of the first vertical foot 3 is against the main profile of the door and window. When the buckle cover profile 1 is placed on the main profile of the door and window, the lower part of the first vertical foot 3 of the protrusion 2 will be in close contact with the top surface of the main profile of the door and window, so as to play a role in supporting the buckle cover profile 1;

[0022] A horizontal foot 4 is provided at the left end of the buckle cover profile 1 and below the protrusion 2, and the horizontal foot 4 is against the main profile of the door and window. When the buckle cover profile 1 is placed on the main profile of the door and window, the left part of the horizontal foot 4 will be in close contact with the side of the main profile of the door and window, so as to play a role in lap proofreading the buckle cover profile 1;

[0023] A plurality of second vertical legs 5 are provided at the lower end of the buckle cover profile 1, and the second vertical legs 5 are located on the left side of the first clamping legs 6. The second vertical legs 5 are against the main profile of the door and window. When the buckle cover profile 1 is placed on the main profile of the door and window, the lower part of the second vertical legs 5 will be in close contact with the top surface of the main profile of the door and window, so as to play a role in supporting the buckle cover profile 1;

[0024] A soft and hard co-extruded foamed adhesive strip 8, the soft and hard co-extruded foamed adhesive strip 8 is overlapped on the upper end of the buckle cover profile 1, and a second clamping foot 9 is provided at the lower end of the soft and hard co-extruded foamed adhesive strip 8, the second clamping foot 9 is inserted into the inside of the adhesive strip notch 7 and is clamped with the buckle cover profile 1, after the buckle cover profile 1 is overlapped, the soft and hard co-extruded foamed adhesive strip 8 can be overlapped on the upper end of the buckle cover profile 1, when overlapping the soft and hard co-extruded foamed adhesive strip 8, it is only necessary to insert the second clamping foot 9 of the soft and hard co-extruded foamed adhesive strip 8 into the inside of the adhesive strip notch 7 of the buckle cover profile 1 and clamp it with the buckle cover profile 1, so as to complete the overlap of the soft and hard co-extruded foamed adhesive strip 8;

[0025] The left and right sides of the lower part of the second clamping foot 9 are provided with a convex block 10 which is integrated therewith, and the upper end of the convex block 10 is in close contact with the top of the inner side of the rubber strip slot 7. When the second clamping foot 9 is inserted into the rubber strip slot 7, the convex block 10 will be in close contact with the top of the inner side of the rubber strip slot 7, so as to ensure the stability of the second clamping foot 9 inserted into the rubber strip slot 7;

[0026] A rubber strip foaming end 11 is fixed to the outer side of the upper end of the second clamping foot 9, and a cavity 12 is arranged at the upper end of the second clamping foot 9 and inside the rubber strip foaming end 11. By setting the interior of the rubber strip foaming end 11 as a closed cavity 12, not only the excellent flexibility of the EPDM foaming strip can be utilized, but also the extrusion force when the frame, the stile and the door are closed can be greatly reduced.

[0027] Working principle: The buckle cover profile 1 made of plastic is assembled with the main profile through the first clamping foot 6, and the soft and hard co-extruded foam strip 8 with a closed cavity is squeezed with the bottom surface of the U-groove of the window sash to ensure the effective contact area and tightness of the middle seal, which can effectively increase the middle sealing area of ​​doors and windows. The soft and hard co-extruded foam strip 8 made of EPDM foam strip can have an effective overlap length of more than 7.5mm after installation, which effectively improves the effectiveness and tightness of the middle seal of the window. At the same time, the foaming end 11 of the strip has a cavity structure inside. The excellent flexibility of the EPDM foam strip can greatly reduce the squeezing force when the frame, stile and sash are closed, which is convenient for the opening and closing of the window sash. In addition, this product develops a movable auxiliary seal without changing the structure of the 70 profile system. The sealing profile is applied to the opening part of the door / window sash. The original sealing strip of the 70 system is adjusted from a single support arm to a soft and hard co-extruded foam strip structure with a closed cavity. The effective sealing area is increased and the use of soft and hard co-extruded foam strips can reduce the closing force of the window sash. The cavity structure is conducive to the rebound of the strip to ensure the sealing effect of doors and windows, reduce air leakage of doors and windows and condensation on the surface in winter. After the door / window frame is assembled, the actual net size of the inner opening is measured, and the profile is cut according to the measured size. It is installed in a vertical pressing horizontal manner. First, the positioning rib on the side of the strip groove is positioned with the middle strip groove of the frame profile, and then the calf is pressed into the strip groove of the frame profile for fixation. When the hardware hinges and lock blocks are installed later, the self-tapping screws are used for two reinforcements to ensure the stability of the system.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic profile for improving the intermediate sealing structure of doors and windows, characterized in that: include: A buckle cover profile (1), the buckle cover profile (1) is made of plastic, a rubber strip notch (7) is provided on the left side of the upper end of the buckle cover profile (1), and a first clamping foot (6) is provided on the right side of the lower end of the buckle cover profile (1), and the first clamping foot (6) is clamped with the main profile of the door and window; A soft and hard co-extruded foamed rubber strip (8), the soft and hard co-extruded foamed rubber strip (8) is overlapped on the upper end of the buckle cover profile (1), and a second clamping foot (9) is provided at the lower end of the soft and hard co-extruded foamed rubber strip (8), and the second clamping foot (9) is inserted into the rubber strip groove (7) and is clamped with the buckle cover profile (1).

2. The plastic profile for improving the intermediate sealing structure of doors and windows according to claim 1, characterized in that: A protrusion (2) is provided on the left part of the buckle cover profile (1), and a first vertical foot (3) is provided at the lower end of the protrusion (2), and the lower part of the first vertical foot (3) abuts against the main profile of the door and window.

3. The plastic profile for improving the intermediate sealing structure of doors and windows according to claim 2, characterized in that: A horizontal foot (4) is provided at the left end of the buckle cover profile (1) and below the protrusion (2), and the horizontal foot (4) abuts against the main profile of the door and window.

4. The plastic profile for improving the intermediate sealing structure of doors and windows according to claim 1, characterized in that: A plurality of second vertical legs (5) are provided at the lower end of the buckle cover profile (1), the second vertical legs (5) are located to the left of the first clamping legs (6), and the second vertical legs (5) are butted against the main profile of the door and window.

5. The plastic profile for improving the intermediate sealing structure of doors and windows according to claim 1, characterized in that: The left and right sides of the lower part of the second clamping foot (9) are provided with convex blocks (10) which are integral therewith, and the upper ends of the convex blocks (10) are tightly attached to the inner top end of the rubber strip groove (7).

6. The plastic profile for improving the intermediate sealing structure of doors and windows according to claim 1, characterized in that: A rubber strip foaming end (11) is fixed to the outer side of the upper end of the second clamping foot (9), and a cavity (12) is arranged at the upper end of the second clamping foot (9) and inside the rubber strip foaming end (11).

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