Fireproof sealing device for plastic doors and windows
By combining fire-resistant sealing strips with a metal frame on plastic doors and windows, and equipping them with fire-retardant coatings and elastic auxiliary sealing lips, the sealing and fire resistance problems of plastic doors and windows under fire conditions are solved. This enables them to maintain sealing performance at high temperatures, prevent the spread of smoke and harmful gases, and improve building fire safety.
Patent Information
- Application Number
- CN202520384425.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing plastic doors and windows have poor fire resistance in fire situations, are prone to burning and deformation, and cannot effectively prevent the spread of smoke and harmful gases, thus failing to meet the fire safety requirements of buildings.
Design a fire-resistant sealing device for plastic doors and windows, which combines fire-resistant sealing strips with a metal frame, and is equipped with a fire-retardant coating and an elastic auxiliary sealing lip to form a heat insulation barrier, ensuring structural integrity at high temperatures, and improving the sealing effect through strong adhesive bonding and anti-detachment structure.
Maintaining a tight seal in the event of a fire prevents air and smoke leakage, improves the fire resistance and sealing effect of doors and windows, prevents the spread of smoke and harmful gases, and ensures personnel safety.
Smart Images
Figure CN223806051U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of plastic door and window fire-resistant sealing device, belong to protective sealing technical field. BACKGROUND
[0002] Plastic door and window are made of plastic profile. Plastic door and window have good characteristics such as waterproof, wind-resistant, heat preservation, and have been widely used in construction. However, in the event of fire, the fire resistance of ordinary plastic door and window is poor, easy to burn deformation, leading to the spread of fire, while unable to effectively prevent the diffusion of smoke and harmful gases, causing great threat to the life safety of personnel. The plastic door and window sealing device on the market at present mostly only pay attention to the sealing effect under ordinary environment, and there is obvious deficiency in fire resistance, which is difficult to meet the needs of building fire safety. SUMMARY
[0003] The utility model provides a kind of plastic door and window fire-resistant sealing device, solve the problems existing in the above background technology.
[0004] The utility model relates to a kind of plastic door and window fire-resistant sealing device, including the installation recess that is arranged on the contact surface of window frame and window sash, fire-resistant sealing rubber strip is fixed in installation recess, metal framework is equipped in fire-resistant sealing rubber strip inside, fire-resistant sealing rubber strip outer side wall is equipped with fireproof coating, fire-resistant sealing rubber strip inner side wall is equipped with support flanging, support flanging is equipped with embedded card slot on the side close to sealing surface, and elastic auxiliary sealing lip is fixed in embedded card slot.
[0005] As a kind of preferred, the outer side wall of metal framework is equipped with the circular-arc recess that is greater than half circle, and the inner side wall of fire-resistant sealing rubber strip is equipped with anti-drop convex rib that is inserted into circular-arc recess. Can better prevent the falling between metal framework and fire-resistant sealing rubber strip.
[0006] As a kind of preferred, the section of installation recess is U-shaped, and fire-resistant sealing rubber strip is fixed in installation recess by strong fire-resistant glue sticking, and dovetail type glue storage groove is equipped on the side wall of installation recess and the outer side wall of fire-resistant sealing rubber strip. The setting of glue storage groove can make the fixation of fire-resistant sealing rubber strip more firm, and better prevent falling.
[0007] As a kind of preferred, elastic auxiliary sealing lip is made of elastic fire-resistant rubber material, metal framework is made of stainless steel or aluminum alloy material, and fire-resistant sealing rubber strip is made of incombustible, fire-expanding organic polymer material.
[0008] As a kind of preferred, fixed recess is equipped on window frame, two layers of fireproof glass are equipped in fixed recess, partition is equipped between the end of two layers of fireproof glass, glass clamping piece is equipped on the outside of fixed recess, fireproof sealing rubber strip is equipped on the inner side of glass clamping piece and the inner side wall of fixed recess.The fireproof and sealing performance of fireproof glass installation place is better.
[0009] As a kind of preferred, the width of lower end of fireproof sealing rubber strip is greater than the width of upper end, fireproof sealing rubber strip is equipped on the outer side wall of fireproof sealing rubber strip, fireproof sealing rubber strip is equipped on the inner side of glass clamping piece and the inner side wall of fixed recess, and the outer side wall of fireproof sealing rubber strip is equipped with anti-withdrawal inclined rib arranged in the form of inner low and outer high, which can better prevent fireproof sealing rubber strip from being withdrawn.
[0010] As a kind of preferred, fireproof sealing rubber block is fixed on the outer end of partition, fixing recess is equipped on the inner side wall of fireproof sealing rubber block, fixing convex is equipped on the outer side wall of partition, and fixed flange wrapped outside fireproof glass is equipped on both sides of fireproof sealing rubber block, so that the partition can be fixed on fireproof sealing rubber block for fixed installation.
[0011] The utility model has the following beneficial effects:
[0012] The metal framework in the fireproof sealing rubber strip can maintain shape at high temperature, maintain the structural integrity of the sealing rubber strip, better prevent fire, and the fireproof sealing rubber strip and the fireproof coating on the surface form a heat shield, improving the fire resistance; the elastic auxiliary sealing lip is arranged to tightly cooperate with the gap of the door and window under normal use and fire conditions, effectively prevent air and smoke from leaking, and improve the sealing performance of the door and window. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the front view structural schematic diagram of the utility model;
[0014] Figure 2 It is Figure 1 It is the enlarged structure schematic diagram of A in the middle;
[0015] In the drawing: 1, window frame; 2, window sash; 3, fireproof sealing rubber strip; 4, metal framework; 5, fireproof coating; 6, supporting flange; 7, elastic auxiliary sealing lip; 8, installation recess; 9, fireproof sealing rubber block; 10, fireproof sealing rubber strip; 11, partition; 12, fixing convex; 13, anti-withdrawal inclined rib; 14, fixed flange; 15, glass clamping piece; 16, fireproof glass; 17, glue storage groove; 18, anti-withdrawal convex rib. DETAILED DESCRIPTION
[0016] The utility model will be further described below in combination with examples.
[0017] Example one, as Figures 1 to 2As shown, the utility model is a kind of plastic door and window fire-resistant sealing device, including the installation recess 8 being arranged on the contact surface of window frame 1 and sash 2, fire-resistant sealing rubber strip 3 is fixed in installation recess 8, metal framework 4 is equipped in fire-resistant sealing rubber strip 3, fire-resistant sealing rubber strip 3's outer side wall is equipped with fireproof coating 5, fire-resistant sealing rubber strip 3's inner side wall is equipped with support flanging 6, support flanging 6 is equipped with embedded slot on the side close to sealing surface, and elastic auxiliary sealing lip 7 is fixed in embedded slot.
[0018] Working principle, when sash 2 is closed, fire-resistant sealing rubber strip 3 and elastic auxiliary sealing lip 7 on the two contact surfaces of sash 2 and window frame 1 are extruded, and the gap between sash 2 and window frame 1 is sealed, which can be tightly matched with the gap between sash 2 and window frame 1 under normal use and fire condition, effectively prevent air and smoke leakage, improve the sealing performance of door and window, fire-resistant sealing rubber strip 3 has good fire resistance, can better prevent fire, and the metal framework 4 in fire-resistant sealing rubber strip 3 can keep shape at high temperature, maintain the structural integrity of fire-resistant sealing rubber strip 3;Better fireproof sealing, and fire-resistant sealing rubber strip 3 and the fireproof coating 5 on the surface form a heat shield, improve the fire resistance.
[0019] In example two, on the basis of example one, the outer side wall of the metal framework 4 is provided with a circular-arc-shaped recess larger than a semicircle, and the inner side wall of the fire-resistant sealing rubber strip 3 is provided with a anti-off convex rib 18 extending into the circular-arc-shaped recess. The setting of the circular-arc-shaped recess can make the fire-resistant sealing rubber strip 3 better adhere to the outside of the metal framework 4.
[0020] The cross section of the installation recess 8 is U-shaped, and the fire-resistant sealing rubber strip 3 is fixed in the installation recess 8 by strong fire-resistant glue. The side wall of the installation recess 8 and the outer side wall of the fire-resistant sealing rubber strip 3 are both provided with dovetail type glue storage groove 17. When the fire-resistant sealing rubber strip 3 is fixed in the installation recess 8, the glue will enter the glue storage groove 17 after the fixing glue is coated on the outer wall of the installation recess 8 and the fire-resistant sealing rubber strip 3, preventing the glue from not being enough to cause firm bonding. Moreover, the glue in the glue storage groove 17 can form a anti-off rib structure after solidification.
[0021] The elastic auxiliary sealing lip 7 is made of elastic fire-resistant rubber material, the metal framework 4 is made of stainless steel or aluminum alloy material, and the fire-resistant sealing rubber strip 3 is made of organic polymer material that is difficult to burn and expands when exposed to fire, such as ethylene-propylene-diene rubber material.
[0022] The window frame 1 is provided with a fixed recess, two layers of fireproof glass 16 are arranged in the fixed recess, a partition 11 is arranged between the end portions of the two layers of fireproof glass 16, a glass clamping piece 15 is arranged outside the fixed recess, and a fire-resistant sealing rubber strip 10 is arranged on the inner side of the glass clamping piece 15 and the inner side wall of the fixed recess.
[0023] The lower end width of the fireproof sealing rubber strip 10 is greater than the upper end width, so that the fireproof sealing rubber strip 10 can be prevented from being pulled out better, the outer side wall of the fireproof sealing rubber strip 10 is provided with a pull-out prevention groove, and the inner side of the glass clamping piece 15 and the inner side wall of the fixed groove are both provided with a pull-out prevention inclined rib 13 which is arranged in an inner low and outer high inclined mode.
[0024] The outer end portion of the partition plate 11 is fixed with a fireproof sealing rubber block 9, the inner side wall of the fireproof sealing rubber block 9 is provided with a fixing groove, the outer side wall of the partition plate 11 is provided with a fixing protrusion 12, and the two sides of the fireproof sealing rubber block 9 are provided with fixed flanges 14 which are wrapped outside the fireproof glass 16. The partition plate 11 is fixed on the fireproof sealing rubber block 9 through strong fire-resistant glue, the fixing protrusion 12 is clamped into the fixing groove when installation, and the fixed flanges 14 are fixed on the fireproof glass 16 through the strong fire-resistant glue.
[0025] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
[0026] In the description of the present application, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and do not require the present application to be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.
Claims
1. A fire-resistant sealing device for plastic doors and windows, comprising a mounting groove (8) arranged on the contact surface of a window frame (1) and a window sash (2), characterized in that: The fireproof sealing rubber strip (3) is fixed in the installation groove (8), the metal framework (4) is arranged in the fireproof sealing rubber strip (3), the fireproof coating (5) is arranged on the outer side wall of the fireproof sealing rubber strip (3), the support flange (6) is arranged on the inner side wall of the fireproof sealing rubber strip (3), the embedded clamping groove is arranged on the side of the support flange (6) close to the sealing surface, and the elastic auxiliary sealing lip (7) is fixed in the embedded clamping groove.
2. A fire resistant sealing device for plastic doors and windows according to claim 1, characterized in that: The outer side wall of the metal framework (4) is provided with a circular-arc-shaped groove larger than a semicircle, and the inner side wall of the fireproof sealing rubber strip (3) is provided with a anti-off convex rib (18) extending into the circular-arc-shaped groove.
3. A fire resistant sealing device for plastic doors and windows according to claim 1, characterized in that: The cross section of the installation groove (8) is U-shaped, the fireproof sealing rubber strip (3) is fixed in the installation groove (8) by strong fireproof adhesive, and the storage groove (17) in the shape of dovetail is arranged on the side wall of the installation groove (8) and the outer side wall of the fireproof sealing rubber strip (3).
4. A fire resistant sealing device for plastic doors and windows according to claim 1, characterized in that: The elastic auxiliary sealing lip (7) is made of elastic fireproof rubber material, the metal framework (4) is made of stainless steel or aluminum alloy material, and the fireproof sealing rubber strip (3) is made of organic polymer material which is difficult to burn and expands when meeting fire.
5. A fire resistant sealing device for plastic doors and windows according to claim 1, characterized in that: The fixed groove is arranged on the window frame (1), the two layers of fireproof glass (16) are arranged in the fixed groove, the partition plate (11) is arranged between the end portions of the two layers of fireproof glass (16), the glass clamping piece (15) is arranged outside the fixed groove, and the fireproof sealing rubber strips (10) are arranged on the inner side of the glass clamping piece (15) and the inner side wall of the fixed groove.
6. A fire resistant sealing device for plastic doors and windows according to claim 5, characterized in that: The lower end of the fireproof sealing rubber strip (10) is wider than the upper end, the anti-off clamping groove is arranged on the outer side wall of the fireproof sealing rubber strip (10), and the anti-off inclined rib (13) is arranged on the inner side of the glass clamping piece (15) and the inner side wall of the fixed groove in a manner that the inner side is lower and the outer side is higher.
7. A fire resistant sealing device for plastic doors and windows according to claim 5, characterized in that: The fireproof sealing rubber block (9) is fixed to the outer end portion of the partition plate (11), the fixing concave groove is arranged on the inner side wall of the fireproof sealing rubber block (9), the fixing convex block (12) is arranged on the outer side wall of the partition plate (11), and the fixing flange (14) is arranged on the two sides of the fireproof sealing rubber block (9) and wrapped outside the fireproof glass (16).