Door and window frame gap sealing device

Abstract

The invention relates to the technical field of door and window sealing, in particular to a door and window frame gap sealing device which comprises a rubber strip, an inflation cavity is formed in the rubber strip, and the outer layer of the rubber strip is sequentially coated with a first polymeric elastomer flexible sealant adhesive layer, a fiber reinforced net layer and a second polymeric elastomer flexible sealant adhesive layer. The side face of the rubber strip is provided with an inflation nozzle communicating the inside and the outside, and the inflation end of the inflation nozzle extends to the outer side of the second macromolecule elastomer flexible sealant adhesive layer. And the rubber strip adopts an inflatable structure, so that a gap between the frame and the wall body can be effectively filled. And the rubber strip is coated with the first high-molecular elastomer flexible sealant adhesive layer and the second high-molecular elastomer flexible sealant adhesive layer, so that an excellent waterproof sealing effect is achieved. The first high-molecular elastomer flexible sealant adhesive layer and the second high-molecular elastomer flexible sealant adhesive layer can fully adapt to deformation caused by inflation or gap change of the rubber strip.

Description

Technical Field

[0001] The present invention relates to the technical field of door and window sealing, and in particular to a device for sealing gaps in door and window frames. Background Art

[0002] In recent years, with the rapid development of plastic-steel and aluminum alloy doors and windows, doors and windows must not come into direct contact with cement mortar or concrete due to the corrosive nature of alkaline materials. Therefore, construction industry management departments require that soft connections be used between doors and windows and walls. Generally, to improve thermal insulation, the gaps between the door and window frames and the wall are filled with cold-resistant felt strips, polystyrene foam strips, silicone foam sealant, or other soft materials. The thickness should not exceed the thickness of the door and window frame material, and the surface is sealed with sealant.

[0003] However, existing methods use foam glue for filling and then glass glue for sealing. In this method, foam glue only fills the gaps and is not waterproof. It also has poor aging resistance and easily breaks down after a period of use, causing the frame to loosen. Glass glue, on the other hand, only provides a seal and, after a period of use, also ages and falls off, causing water to seep through the gaps.

[0004] Therefore, a door and window sealing device is developed which has both filling capability and waterproof sealing capability. Summary of the Invention

[0005] The purpose of the present invention is to provide a door and window frame gap sealing device to solve the problem that conventional foam glue used in the prior art to fill door frame gaps only has the function of filling the gaps but is not waterproof and has poor aging resistance.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A device for sealing gaps in door and window frames comprises a rubber strip, an inflation cavity being provided in the rubber strip, an outer layer of the rubber strip being sequentially covered with a first polymer elastomer flexible sealant layer, a fiber reinforced mesh layer and a second polymer elastomer flexible sealant layer, an inflation nozzle communicating with the inside and outside being provided on the side of the rubber strip, and an inflation end of the inflation nozzle extending to the outside of the second polymer elastomer flexible sealant layer.

[0007] A further technical solution is that the upper and lower sides of the rubber strip are made of elastic rubber, and the two side surfaces of the rubber strip are made of inelastic rubber.

[0008] A further technical solution is that the outer side of the second polymer elastic flexible sealant layer is coated with an isolation film.

[0009] A further technical solution is that the inflation nozzle includes an inflation tube, and a mounting hole connecting the inside and the outside is provided on the side of the rubber strip. The inflation tube is installed in the mounting hole, and the inflation tube is provided with a one-way valve assembly that conducts one-way from the outside to the inside. The inflation tube is placed on the outside of the rubber strip at one end and is detachably connected to a sealing cap.

[0010] A further technical solution is that the one-way valve assembly includes a fixing ring, a spring, a sealing plug and a sealing block arranged in sequence from the inside to the outside of the inflation tube, one end of the spring is connected to the fixing ring, and the other end is connected to the sealing plug, the side wall of the sealing plug and the inner wall of the inflation tube are slidably fitted, a first air vent is provided near the edge of the sealing plug, and a second air vent is provided in the middle of the sealing block, when the sealing plug and the sealing block are fitted, the middle of the sealing plug blocks the second air vent.

[0011] A further technical solution is that the aperture of the second vent hole gradually decreases from the inside to the outside, and a sealing rod is provided on the sealing plug aligned with the position of the second vent hole, and the diameter of the sealing rod matches the diameter of the second vent hole.

[0012] A further technical solution is that a sealing rubber layer is provided on the hole wall of the second vent hole.

[0013] A further technical solution is that the inflation tube is filled with sealing paraffin at a position outside the sealing block, and the inner wall of the inflation tube is set to a frosted surface at the position where the sealing paraffin is filled.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The rubber strip adopts an inflatable structure, which can effectively fill the gap between the frame and the wall; 2. The rubber strip is coated with a first polymer elastomer flexible sealant layer and a second polymer elastomer flexible sealant layer, which has an excellent waterproof sealing effect; 3. The first polymer elastomer flexible sealant layer and the second polymer elastomer flexible sealant layer can fully adapt to the deformation caused by the inflation of the rubber strip or the change of the gap; 4. By setting a fiber reinforcement net, the tensile strength of the first polymer elastomer flexible sealant layer and the second polymer elastomer can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a cross-sectional schematic diagram of a device for sealing gaps in door and window frames.

[0016] Figure 2 for Figure 1 A partial enlarged schematic diagram of the area marked A.

[0017] Icon: 1- rubber strip, 2- inflation cavity, 3- first polymer elastomer flexible sealant layer, 4- fiber reinforced mesh layer, 5- second polymer elastomer flexible sealant layer, 6- inflation nozzle, 7- elastic rubber, 8- non-elastic rubber, 9- inflation tube, 10- mounting hole, 11- sealing cap, 12- fixing ring, 13- sealing plug, 14- spring, 15- sealing block, 16- first vent hole, 17- second vent hole, 18- sealing rod, 19- sealing rubber layer, 20- sealing paraffin. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] Figures 1 to 2 Shown is an embodiment of the present invention.

[0020] Example: A device for sealing gaps in door and window frames comprises a rubber strip 1, an inflation cavity 2 being provided in the rubber strip 1, an outer layer of the rubber strip 1 being sequentially covered with a first polymer elastomer flexible sealant adhesive layer 3, a fiber reinforced mesh layer 4 and a second polymer elastomer flexible sealant adhesive layer 5, an inflation nozzle 6 communicating with the inside and outside being provided on the side of the rubber strip 1, and an inflation end of the inflation nozzle 6 extending to the outside of the second polymer elastomer flexible sealant adhesive layer 5.

[0021] The upper and lower sides of the rubber strip 1 are made of elastic rubber 7, and the two side surfaces of the rubber strip 1 are made of inelastic rubber 8. The upper and lower sides of the sealing device are made of elastic rubber 7, and the elastic deformation can reach 200%, which can fully adapt to deformation without cracking. The upper and lower sides are respectively connected to the wall and the door and window frames to achieve a sealing effect. The side surfaces of the sealing device are all composed of inelastic rubber 8, and the elastic deformation is small. After inflation, the elastic rubber 7 of the sealing device will expand. The expanded elastic rubber 7 is in close contact with the wall and the frame, which can fully fill the gap and play a filling role. It also cooperates with the first polymer elastomer flexible sealant layer 3, the fiber reinforced mesh layer 4 and the second polymer elastomer flexible sealant layer 5 to play a sealing role, and the deformation of the inelastic rubber 8 is very small.

[0022] The outer side of the second polymer elastic flexible sealant layer 5 is covered with an isolation film, which can protect the outer side of the second polymer elastic flexible sealant layer 5 and can be torn off before use.

[0023] The inflation nozzle 6 includes an inflation tube 9. The side of the rubber strip 1 is provided with a mounting hole 10 that connects the inside and the outside. The inflation tube 9 is installed in the mounting hole 10. The inflation tube 9 is provided with a one-way valve assembly that conducts one-way from the outside to the inside. The inflation tube 9 is placed on the outside of the rubber strip 1 and is detachably connected to a sealing cap 11 at one end. When inflating, the sealing cap 11 is removed, and then the inflation tube 9 is connected to the inflation chamber 2 with the help of an air pump to inflate the inflation chamber 2. After inflation is completed, the one-way valve assembly can prevent the gas in the inflation chamber 2 from overflowing, and after restarting, the sealing cap 11 can further seal the inflation tube 9.

[0024] The one-way valve assembly includes a fixing ring 12, a spring 14, a sealing plug 13 and a sealing block 15, which are arranged in sequence from the inside to the outside in the inflation tube 9. One end of the spring 14 is connected to the fixing ring 12, and the other end is connected to the sealing plug 13. The side wall of the sealing plug 13 is slidably fitted with the inner wall of the inflation tube 9. A first vent hole 16 is provided near the edge of the sealing plug 13, which passes through both sides. A second vent hole 17 is provided in the middle of the sealing block 15, which passes through both sides. When the sealing plug 13 and the sealing block 15 are fitted together, the middle part of the sealing plug 13 blocks the second vent hole 17. During inflation, after gas enters the inflation tube 9, it moves through the second vent hole 17 of the sealing block 15. Then, the gas pushes the sealing plug 13 toward the fixing ring 12, separating the sealing plug 13 from the sealing block 15 and compressing the spring 14, so that the gas enters the inflation chamber 2 through the second vent hole 17, the first vent hole 16 and the fixing ring 12 in sequence. After the inflation is completed and the air pump stops supplying air, the spring 14 pushes the sealing plug 13 to seal the second vent hole 17 , so that the gas in the inflation chamber 2 cannot overflow from the inflation chamber 2 .

[0025] The diameter of second vent hole 17 gradually decreases from the inside out. A sealing rod 18 is provided on sealing plug 13, aligned with second vent hole 17. The diameter of sealing rod 18 matches the diameter of second vent hole 17. The provision of sealing rod 18 improves the sealing performance between the two by creating a larger contact area between the outer wall of sealing rod 18 and second vent hole 17. The diameter of sealing rod 18 also gradually increases from the inside out.

[0026] A sealing rubber layer 19 is provided on the hole wall of the second vent hole 17. By providing the sealing rubber layer 19, the sealing performance between the sealing rod 18 and the second sealing hole can be improved to prevent gas from escaping.

[0027] The inflation tube 9 is filled with sealing wax 20 outside the sealing block 15. The inner wall of the inflation tube 9 is frosted at the location where the wax 20 is placed. The wax 20 further enhances the sealing performance of the inflation tube 9, preventing gas from escaping from the inflation chamber 2. Furthermore, the frosted inner wall of the inflation tube 9 prevents the wax 20 from loosening and creating gaps between the inner wall of the inflation tube 9.

[0028] Although the present invention has been described herein with reference to a number of illustrative embodiments thereof, it will be understood that numerous other modifications and implementations may be devised by those skilled in the art that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, the drawings, and the claims, numerous variations and modifications may be made to the components and / or layout of the subject combination arrangement. In addition to variations and modifications to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A sealing device for the gap of a door or window frame, characterized in that: The invention comprises a rubber strip (1), wherein an inflation cavity (2) is arranged inside the rubber strip (1), wherein the outer layer of the rubber strip (1) is covered with a first polymer elastic body flexible sealant layer (3), a fiber reinforced mesh layer (4) and a second polymer elastic body flexible sealant layer (5) in sequence, and an inflation nozzle (6) is arranged on the side of the rubber strip (1) for communicating the inside and the outside, and the inflation end of the inflation nozzle (6) extends to the outside of the second polymer elastic body flexible sealant layer (5).

2. A sealing device for a gap in a door or window frame according to claim 1, characterized in that: The material of the upper and lower sides of the rubber strip (1) is elastic rubber (7), and the material of the two side surfaces of the rubber strip (1) is non-elastic rubber (8).

3. The device for sealing the gap of a door or window frame according to claim 1, characterized in that: The outer side of the second polymer elastic flexible sealant layer (5) is coated with an isolation film.

4. The device for sealing the gap of a door or window frame according to claim 1, characterized in that: The inflation nozzle (6) comprises an inflation tube (9), a mounting hole (10) communicating the inside and the outside is provided on the side of the rubber strip (1), the inflation tube (9) is installed in the mounting hole (10), the inflation tube (9) is provided with a one-way valve assembly that conducts one-way from the outside to the inside, and one end of the inflation tube (9) that is placed outside the rubber strip (1) is detachably connected to a sealing cap (11).

5. The device for sealing the gap of a door or window frame according to claim 4, characterized in that: The one-way valve assembly comprises a fixing ring (12), a spring (14), a sealing plug (13) and a sealing block (15) which are arranged in sequence from the inside to the outside of the inflation tube (9); one end of the spring (14) is connected to the fixing ring (12), and the other end is connected to the sealing plug (13); the side wall of the sealing plug (13) and the inner wall of the inflation tube (9) are slidably fitted; a first vent hole (16) passing through both sides is provided at a position close to the edge of the sealing plug (13); a second vent hole (17) passing through both sides is provided at the middle of the sealing block (15); when the sealing plug (13) and the sealing block (15) are fitted together, the middle of the sealing plug (13) blocks the second vent hole (17).

6. The device for sealing the gap of a door or window frame according to claim 5, characterized in that: The aperture of the second vent hole (17) gradually decreases from the inside to the outside, and a sealing rod (18) is provided on the sealing plug (13) at a position aligned with the second vent hole (17), and the diameter of the sealing rod (18) matches the diameter of the second vent hole (17).

7. The device for sealing the gap of a door or window frame according to claim 6, characterized in that: A sealing rubber layer (19) is provided on the hole wall of the second vent hole (17).

8. The device for sealing the gap of a door or window frame according to claim 5, characterized in that: The inflation tube (9) is filled with sealing paraffin (20) at a position outside the sealing block (15), and the inner wall of the inflation tube (9) is provided as a frosted surface at the position where the sealing paraffin (20) is filled.

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