A new type of plastic profile to improve the intermediate sealing structure of doors and windows
By using plastic-made buckle profiles and soft and hard co-extruded foam strips in the 75 series U-PVC casement windows, the problem of increasing reaction force and sealing gaps caused by excessive extrusion of the rubber strips in the prior art is solved, and a more efficient sealing effect and more convenient window sash operation are achieved.
Patent Information
- Application Number
- CN202421484513.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing 75 series U-PVC casement window middle seal structure has an increase in reaction force caused by excessive extrusion of the rubber strip, an increase in the sash closing and locking force, and the deformation or poor contact of the rubber strip leads to seal gaps, affecting the air-tightness and thermal insulation performance.
The buckle profile made of plastic and the matching soft and hard co-extruded foam strip are used to clamp the main profile through the buckle profile and the rubber hook, and combined with the cavity structure of the soft and hard co-extruded foam strip to ensure the effective contact area and tightness of the intermediate seal.
It effectively increases the sealing area between doors and windows, improves the effectiveness and tightness of the sealing, reduces the squeeze pressure when the window sash is closed, and facilitates the opening and closing of the window sash.
Smart Images
Figure CN222731449U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic profiles, in particular to a new type of plastic profile that improves the middle sealing structure of doors and windows. Background Art
[0002] 75 series U-PVC casement windows are upgraded products of 70 series U-PVC door and window system products. The size of hollow glass changes to 5+12+5+12+5, and the sound insulation and heat preservation performance is improved compared with the 70 series. The 75 series U-PVC casement windows have large intervals and are suitable for owners with larger windows, especially large French windows, and have strong sound insulation requirements. At present, the mainstream technology of the 75 series of doors and windows is to increase the structural size 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 new type of plastic profile for improving the intermediate sealing structure of doors and windows, so as to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new type of plastic profile for improving the intermediate sealing structure of doors and windows, including:
[0005] A buckle cover profile, 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, a first clamping foot is provided on the left side of the lower end of the buckle cover profile, and a second clamping foot is provided on the right side of the lower end of the buckle cover profile, the first clamping foot and the second clamping foot are both clamped with the main profile of the door and window, a rubber hook is fixed to the right end of the first clamping foot, and the rubber hook is in close contact with the main profile of the door and window;
[0006] A soft and hard co-extruded foam strip is overlapped on the upper end of the buckle cover profile, and a third clamping foot is provided at the lower end of the soft and hard co-extruded foam strip. The third clamping foot is inserted into the strip groove and clamped with the buckle cover profile.
[0007] Preferably, a first vertical foot is provided on the left side of the lower end of the buckle cover profile, the first vertical foot is located on the left side of the first clamping foot, and the bottom of the first vertical foot is in close contact with the main profile of the door and window.
[0008] Preferably, a second vertical foot is provided at the lower end of the buckle cover profile, the second vertical foot is located between the first clamping foot and the second clamping foot, and the bottom of the second vertical foot is in close contact with the main profile of the door and window.
[0009] Preferably, an inclined boss is provided at the left end of the soft and hard co-extruded foam strip, and the inclined boss is in contact with the buckle cover profile.
[0010] Preferably, a foaming end of the strip is fixed to the upper end of the soft and hard co-extruded foam strip, and a cavity is provided inside the foaming end of the strip.
[0011] Preferably, a recessed entrance is provided at the right end of the foaming end of the rubber strip, and the bottom angle of the recessed entrance is 80 degrees to 100 degrees.
[0012] Preferably, a vertical boss is provided at the lower end of the buckle cover profile, the vertical boss is located between the second vertical foot and the second clamping foot, and the bottom of the vertical boss is in close contact with the main profile of the door and window.
[0013] The utility model provides a new type of plastic special-shaped material for improving the intermediate sealing structure of doors and windows, which has the following beneficial effects: the buckle cover special-shaped material made of plastic is assembled with the main profile by a first clamping foot and a second clamping foot, and the soft and hard co-extruded foamed rubber strips with a closed cavity are extruded with the side 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 7mm, which effectively improves the effectiveness and tightness of the intermediate seal of the window, and at the same time, the interior of the rubber strip presents a cavity structure, which combined with the excellent flexibility of the EPDM foamed strip can greatly reduce the extrusion force when the frame, the stile and the sash are closed, thereby facilitating the opening and closing of the window sash. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the middle sealing strip of the 75 series plastic-steel window in the prior art;
[0015] Figure 2 It is a schematic diagram of the overlap of the middle sealing structure of the profile opening sash in the prior art;
[0016] Figure 3 It is an overall schematic diagram of the utility model;
[0017] 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.
[0018] In the figure: 1- buckle cover profile, 2-first vertical foot, 3-first clamping foot, 4-rubber hook, 5-second vertical foot, 6-second clamping foot, 7-third clamping foot, 8-soft and hard co-extruded foamed rubber strip, 9-oblique boss, 10-foaming end of rubber strip, 11-cavity, 12-recessed entrance, 13-strip notch, 14-vertical boss. DETAILED DESCRIPTION
[0019] 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.
[0020] See also Figure 3-Figure 4 , a new type of plastic profile for improving the intermediate sealing structure of doors and windows, including:
[0021] A buckle cover profile 1, the buckle cover profile 1 is made of plastic, a rubber strip notch 13 is provided on the left side of the upper end of the buckle cover profile 1, a first clamping foot 3 is provided on the left side of the lower end of the buckle cover profile 1, and a second clamping foot 6 is provided on the right side of the lower end of the buckle cover profile 1, the first clamping foot 3 and the second clamping foot 6 are both clamped with the main profile of the door and window, a rubber hook 4 is fixed to the right end of the first clamping foot 3, and the rubber hook 4 is in close contact with the main profile of the door and window, and the first clamping foot 3 is clamped with the notch of the middle rubber strip inserted into the main profile of the 75 series door and window, and the rubber hook 4 supports the other inner top wall of the notch of the middle rubber strip of the main profile of the 75 series door and window to ensure the clamping stability of the first clamping foot 3, and the second clamping foot 6 is inserted into the notch on the other side for clamping, so that the buckle cover profile 1 can be clamped on the main profile of the 75 series door and window;
[0022] 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 third clamping foot 7 is provided at the lower end of the soft and hard co-extruded foamed rubber strip 8, and the third clamping foot 7 is inserted into the strip groove 13 and clamped with the buckle cover profile 1, and by inserting the third clamping foot 7 under the soft and hard co-extruded foamed rubber strip 8 into the strip groove 13 of the buckle cover profile 1, an inclined boss 9 is provided at the left end of the soft and hard co-extruded foamed rubber strip 8, and the inclined boss 9 is in contact with the buckle cover profile 1, and a strip foaming end 10 is fixed at the upper end of the soft and hard co-extruded foamed rubber strip 8, and a cavity 11 is provided inside the strip foaming end 10, and a recessed entrance 12 is provided at the right end of the strip foaming end 10, and the groove bottom angle of the recessed entrance 12 is 80 degrees-100 degrees, so that the soft and hard co-extruded foamed rubber strip 8 can be clamped with the buckle cover profile 1, and the inclined boss 9 is located at the buckle cover profile 1 The left side is convenient for drainage, thus completing the installation of the soft and hard co-extruded foam strip 8, and the buckle cover profile 1 made of plastic is assembled with the main profile through the first clamping foot 3 and the second clamping foot 6, and the soft and hard co-extruded foam strip 8 with a closed cavity 11 is squeezed with the side of the U-groove of the window sash to ensure the effective contact area and tightness of the middle seal, and the recessed entrance 12 of the soft and hard co-extruded foam strip 8 is conducive to extrusion and fitting with the side of the U-groove of the window sash, which can effectively increase the middle sealing area of doors and windows, and the soft and hard co-extruded foam strip 8 made of EPDM foam strip is used. The effective overlap length after installation can reach more than 7mm, which effectively improves the effectiveness and tightness of the middle seal of the window, and at the same time, the interior of the strip is a cavity structure, combined with the excellent flexibility of the EPDM foam strip, which can greatly reduce the extrusion force when the frame, stile and sash are closed, and facilitates the opening and closing of the window sash.
[0023] A first vertical foot 2 is provided on the left side of the lower end of the buckle cover profile 1, and the first vertical foot 2 is located on the left side of the first clamping foot 3. The bottom of the first vertical foot 2 is in close contact with the main profile of the door and window. By setting the first vertical foot 2, the first vertical foot 2 is placed on the outside of the groove of the middle rubber strip of the main profile of the door and window, which is convenient for drainage, thereby improving the waterproof effect of the buckle cover profile 1 after being combined with the main profile.
[0024] A second vertical foot 5 is provided at the lower end of the buckle cover profile 1, and the second vertical foot 5 is located between the first clamping foot 3 and the second clamping foot 6. The bottom of the second vertical foot 5 is in close contact with the main profile of the door and window. The second vertical foot 5 is set to support the middle part of the buckle cover profile 1.
[0025] A vertical boss 14 is provided at the lower end of the buckle cover profile 1, and the vertical boss 14 is located between the second vertical foot 5 and the second clamping foot 6. The bottom of the vertical boss 14 is in close contact with the main profile of the door and window. The vertical boss 14 is provided to support the middle part of the buckle cover profile 1.
[0026] 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 new type of 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 (13) is provided on the left side of the upper end of the buckle cover profile (1), a first clamping foot (3) is provided on the left side of the lower end of the buckle cover profile (1), and a second clamping foot (6) is provided on the right side of the lower end of the buckle cover profile (1), the first clamping foot (3) and the second clamping foot (6) are both clamped with the main profile of the door and window, and a rubber hook (4) is fixed to the right end of the first clamping foot (3), and the rubber hook (4) is tightly attached to the main profile of the door and window; A soft and hard co-extruded foamed rubber strip (8) is overlapped on the upper end of the buckle cover profile (1), and a third clamping foot (7) is provided at the lower end of the soft and hard co-extruded foamed rubber strip (8), and the third clamping foot (7) is inserted into the rubber strip groove (13) and is clamped with the buckle cover profile (1).
2. The novel plastic profile for improving the intermediate sealing structure of doors and windows according to claim 1, characterized in that: A first vertical foot (2) is provided on the left side of the lower end of the buckle cover profile (1); the first vertical foot (2) is located on the left side of the first clamping foot (3); and the bottom of the first vertical foot (2) is in close contact with the main profile of the door or window.
3. The novel plastic profile for improving the intermediate sealing structure of doors and windows according to claim 1, characterized in that: A second vertical foot (5) is provided at the lower end of the buckle cover profile (1); the second vertical foot (5) is located between the first clamping foot (3) and the second clamping foot (6); and the bottom of the second vertical foot (5) is in close contact with the main profile of the door and window.
4. The novel plastic profile for improving the intermediate sealing structure of doors and windows according to claim 1, characterized in that: The left end of the soft and hard co-extruded foam strip (8) is provided with an inclined boss (9), and the inclined boss (9) is in contact with the buckle cover profile (1).
5. The novel plastic profile for improving the intermediate sealing structure of doors and windows according to claim 1, characterized in that: A strip foaming end (10) is fixed to the upper end of the soft and hard co-extruded foamed strip (8), and a cavity (11) is provided inside the strip foaming end (10).
6. The novel plastic profile for improving the intermediate sealing structure of doors and windows according to claim 5, characterized in that: A recessed opening (12) is provided at the right end of the foaming end (10) of the rubber strip, and the bottom angle of the recessed opening (12) is 80 degrees to 100 degrees.
7. The novel plastic profile for improving the intermediate sealing structure of doors and windows according to claim 3, characterized in that: A vertical boss (14) is provided at the lower end of the buckle cover profile (1), the vertical boss (14) is located between the second vertical foot (5) and the second clamping foot (6), and the bottom of the vertical boss (14) is in close contact with the main profile of the door and window.