Construction method for restraining outward expansion of polyurethane foam joint mixture in window frame installation

Abstract

The invention relates to the field of building construction, in particular to a construction method for restraining outward expansion of a polyurethane foam joint mixture in window frame installation, which comprises the following steps: S1, designing a window frame clamp which comprises a clamp main body, and arranging an auxiliary movable screw rod on a first side surface of the clamp main body in a threaded penetrating manner, a fixed clamping groove is formed in the inner wall of the second side face of the clamp body and close to the notch, a main movable lead screw penetrates through the first side face of the clamp body in a threaded mode, the main movable lead screw is opposite to the fixed clamping groove, and a movable clamping groove is formed in the inner end of the main movable lead screw. S2, manufacturing a window frame clamp; s3, gaps are filled with a polyurethane foam joint mixture; according to the scheme, the defects in the prior art are overcome, the polyurethane foam joint mixture is restrained, it is guaranteed that the compactness, the forming effect and the anti-seepage effect of gap filling between the window frame and the structure are good, and sealant construction is not affected; the device is suitable for mounting most window frames, quick to mount and dismount, reusable, good in construction quality, free of damage to the window frames and capable of saving labor and material cost.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a construction method for restraining the external expansion of a polyurethane foam sealant during window frame installation. Background Art

[0002] In order to ensure the anti-leakage requirements of windows, the gap between the window frame and the building structure needs to be sealed for a second time. At present, two materials are mainly used to seal the gap between the window frame and the building structure: one is to fill the gap with micro-expansion waterproof cement mortar; the other is to fill the gap with polyurethane foam sealant. When the first method is filled with micro-expansion waterproof cement mortar, the material construction is difficult and the labor cost is high. It is easy to pollute the window frame, and the filling is not dense, resulting in poor sealing effect and easy leakage, resulting in sealing failure. When the second method is filled with polyurethane foam sealant, there are two construction methods: one is to use a knife to cut off the excess part after the polyurethane foam sealant is expanded and solidified during construction. This method is quick to construct, but it is easy to cause leakage due to cutting waterproof foam glue; the other is to press the excess part into the gap manually before it is completely solidified during construction of polyurethane foam sealant. This method has a good anti-leakage effect, but it is troublesome to operate, with high labor costs, and the uneven surface of the foam glue after molding is easy to affect the molding quality of the later window frame sealant construction. Summary of the invention

[0003] In view of the above problems, an embodiment of the present invention provides a construction method for restraining the expansion of polyurethane foam sealant during window frame installation.

[0004] An embodiment of the present invention provides a construction method for restraining the expansion of a polyurethane foam sealant during window frame installation, comprising: S1. Design window frame fixture The window frame clamp comprises a clamp body in a groove shape, a secondary movable screw rod is threadedly penetrated on a first side surface of the clamp body, a fixed clamp groove is arranged on an inner wall of a second side surface of the clamp body and close to a slot, and the fixed clamp groove is arranged along an axial direction of the clamp body, a main movable screw rod is threadedly penetrated on the first side surface of the clamp body, the main movable screw rod is opposite to the fixed clamp groove, and a movable clamp groove is arranged at an inner end of the main movable screw rod; S2. Making window frame fixture The fixture body is manufactured according to the thickness of the window frame, a threaded hole is opened on the first side of the fixture body and a secondary movable screw rod is inserted into the threaded hole; the position of the fixed clamping groove is determined on the inner wall of the second side of the fixture body according to the width of the gap between the window frame and the building structure, and a fixed clamping groove is opened, a threaded hole is opened on the first side of the fixture body at a phase position with the fixed clamping groove, and a main movable screw rod is inserted into the threaded hole, and an movable clamping groove opposite to the fixed clamping groove is set at the inner end of the main movable screw rod; S3, gap filling polyurethane foam sealant According to the length of the gap, cut two restraining sleeves of appropriate length, place the first restraining sleeve against the gap on the water-facing side of the outdoor window frame, set the main body spacer cover of the clamp on the window frame and clamp the first restraining sleeve in the fixed clamping groove, rotate the sub-active screw so that the inner end of the sub-active screw presses against the window frame to clamp the first restraining sleeve in the gap; fill the gap from the gap on the water-repelling side of the indoor window frame with polyurethane foam sealant, after filling, place the second restraining sleeve against the gap on the water-repelling side of the indoor window frame, rotate the main active screw so that the movable clamping groove presses against the second restraining sleeve, and remove the window frame clamp and the restraining sleeve after the polyurethane foam sealant swells and solidifies.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The construction method of the present invention is applicable to a wide range of window frame installations, and this method can be used to seal both the upper and lower openings of the window frame and the side edges of the window frame; 2. The clamps used in the construction method of the present invention are similar to the fasteners commonly used in construction projects, and can be directly customized in batches by the factory according to the actual on-site conditions. The restraining sleeves can be cut and formed on-site from electrical sleeves of corresponding specifications according to the actual on-site window frame size; and can be reused after disassembly after use, saving costs; 3. The construction method of the present invention realizes factory customization and on-site installation of the finished clamps, and the installation is simple, and no tools are required for on-site installation and disassembly; 4. The construction method of the present invention is relatively Compared with the construction method that originally required gluing on both sides of the window frame, only the side of the window frame facing the water indoors needs to be glued, and the later expansion and foaming removal work is omitted, which greatly reduces the manual workload; at the same time, it avoids the high-altitude probe operation when gluing the outdoor water-facing surface of the window frame, and improves the safety of the operation; 5. The installation and removal of the fixture used in the construction method of the present invention do not damage the window frame and the structure, and at the same time avoid the large amount of construction waste generated when the original expansion and foaming removal is performed; 6. After the polyurethane foam sealant is filled, due to the constraints on both sides of the gap, the polyurethane foam sealant cannot swell outward, and can only swell inside the gap, which greatly improves the density of the gap filling between the window frame and the structure. The anti-leakage effect will be better, and the amount of polyurethane foam sealant will be saved, saving costs; 7. The construction method of the present invention avoids the shortcomings and defects of the prior art, constrains the polyurethane foam sealant, ensures the density of the gap filling between the window frame and the structure, and has good molding effect and anti-leakage effect, and has no effect on the construction of the sealant. The construction method of the present invention is suitable for most window frame installations, has the advantages of simple operation, fast assembly and disassembly, repeated use, good quality effect, no damage to the window frame, saving labor and materials, and saving costs.

[0006] Optionally, the clamp body is made of hard metal, and is round or square in shape as a whole, with a width greater than the thickness of the window frame and a length of 30 mm.

[0007] Optionally, the main movable lead screw and the auxiliary movable lead screw are made of hard metal and are both provided with an integrally formed handle.

[0008] Optionally, the main movable screw rod and the movable clamping groove adopt a split structure, or the main movable screw rod and the movable clamping groove are rotatably connected.

[0009] Optionally, the restraining sleeve adopts an electrical sleeve, the diameter of which is determined according to the width of the gap and the length of which is determined according to the length / width of the window frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute a limitation of the present invention. In the drawings: Figure 1 A schematic diagram of the three-dimensional structure of a window frame clamp provided in an embodiment of the present invention; Figure 2 A schematic diagram of the side structure of a window frame clamp provided by an embodiment of the present invention; Figure 3 A schematic diagram of the construction structure of a window frame clamp provided in an embodiment of the present invention.

[0011] Among them, 1. the clamp body; 2. the auxiliary movable screw rod; 3. the fixed clamping groove; 4. the main movable screw rod; 5. the movable clamping groove; 6. the window frame; 7. the building structure; 8. the first restraining sleeve; 9. the polyurethane foam sealant; 10. the second restraining sleeve. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0013] An embodiment of the present invention provides a construction method for restraining the expansion of a polyurethane foam sealant during window frame installation, comprising: S1. Design window frame fixture The window frame clamp comprises a clamp body 1 in a groove shape, a secondary movable screw rod 2 is threadedly penetrated on a first side surface of the clamp body 1, a fixed clamp groove 3 is arranged on the inner wall of the second side surface of the clamp body 1 and close to the groove, and the fixed clamp groove 3 is arranged along the axis direction of the clamp body 1, a main movable screw rod 4 is threadedly penetrated on the first side surface of the clamp body 1, the main movable screw rod 4 is opposite to the fixed clamp groove 3, and a movable clamp groove 5 is arranged at the inner end of the main movable screw rod 4; S2. Making window frame fixture A fixture body 1 is manufactured according to the thickness of the window frame 6, a threaded hole is opened on the first side of the fixture body 1 and a secondary movable screw rod 2 is inserted into the threaded hole; a fixed clamping groove 3 is located on the inner wall of the second side of the fixture body 1 according to the width of the gap between the window frame 6 and the building structure 7 and a fixed clamping groove 3 is opened, a threaded hole is opened on the first side of the fixture body 1 at a phase position with the fixed clamping groove 3 and a main movable screw rod 4 is inserted into the threaded hole, and an movable clamping groove 5 opposite to the fixed clamping groove 3 is arranged at the inner end of the main movable screw rod 4; S3, gap filling polyurethane foam sealant According to the length of the gap, cut two restraining sleeves of appropriate length, press the first restraining sleeve 8 against the gap on the outdoor water-facing side of the window frame 6, set the clamp body 1 on the window frame 6 and clamp the first restraining sleeve 8 in the fixed clamping groove 3, rotate the sub-active screw 2 so that the inner end of the sub-active screw 2 presses against the window frame 6, so as to clamp the first restraining sleeve 8 in the gap; fill the gap from the gap on the indoor water-receiving side of the window frame 6 with polyurethane foam sealant 9, and after the filling is completed, press the second restraining sleeve 10 against the gap on the indoor water-receiving side of the window frame 6, rotate the main active screw 4 so that the movable clamping groove 5 presses against the second restraining sleeve 10, and remove the window frame clamp and the restraining sleeve after the polyurethane foam sealant 9 swells and solidifies.

[0014] In practice, the fixture body 1 is made of hard metal material, such as square steel, channel steel, etc., and is round or square in shape as a whole, with a width greater than the thickness of the window frame by 50 mm and a length of 30 mm.

[0015] The main movable screw rod 4 and the auxiliary movable screw rod 2 are made of hard metal material and are both provided with an integrally formed handle. They can be made of round steel with a diameter of 18 mm. The main movable screw rod 4 and the auxiliary movable screw rod 2 are 100 mm long.

[0016] The main movable screw rod 4 and the movable clamping groove 5 adopt a split structure. When in use, the movable clamping groove 5 is buckled on the second constraint sleeve 10 and then the main movable screw rod 4 is rotated to tighten the movable clamping groove 5; or the main movable screw rod 4 is rotatably connected with the movable clamping groove 5. When in use, the main movable screw rod 4 is rotated to drive the movable clamping groove 5 to move and finally tighten the second constraint sleeve 10.

[0017] The restraining sleeve adopts an electrical sleeve, the diameter of which is determined according to the width of the gap, generally 20mm, and the length is determined according to the length / width of the window frame.

[0018] The solution provided by the embodiment of the present invention is applicable to a wide range of window frame installations. Whether it is sealing the upper and lower openings of the window frame or sealing the side of the window frame, the method can be used for sealing. The clamps used are similar to the fasteners commonly used in construction projects. They are directly customized in batches by the factory according to the actual situation on site. The restraint sleeves can be cut and formed on site from electrical sleeves of corresponding specifications according to the actual size of the window frame on site. Moreover, they can be reused after being disassembled after use, which saves costs. The finished fixtures can be customized in the factory and installed on site, and the installation is simple. No tools are required for on-site installation and disassembly. Compared with the original need to glue both sides of the window frame, The construction method only needs to glue the side of the window frame indoors that is not exposed to the water, and eliminates the later external expansion and foaming removal work, greatly reducing the manual workload; at the same time, it avoids the high-altitude probe operation when gluing the outdoor water-facing surface of the window frame, improving the safety of the operation; the installation and removal of the clamps used do not damage the window frame and structure, and at the same time avoids the large amount of construction waste generated when the external expansion and foaming are removed; after the polyurethane foam sealant is filled, due to the constraints on both sides of the gap, the polyurethane foam sealant cannot expand outward, but can only expand inside the gap, greatly improving the density of the gap filling between the window frame and the structure. The anti-leakage effect will be better, and the amount of polyurethane foam sealant will be saved, saving costs; avoiding the shortcomings and defects of the existing technology, constraining the polyurethane foam sealant, ensuring the density of the gap filling between the window frame and the structure, and the molding effect and anti-leakage effect are good, and there is no effect on the construction of the sealant. The construction method of the present invention is suitable for most window frame installations, has the advantages of simple operation, fast assembly and disassembly, repeated use, good quality effect, no damage to the window frame, saving labor and materials, and saving costs.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A construction method for restraining the expansion of polyurethane foam sealant during window frame installation, characterized in that: include: S1. Design window frame fixture The window frame clamp comprises a clamp body in a groove shape, a secondary movable screw rod is threadedly penetrated on a first side surface of the clamp body, a fixed clamp groove is arranged on an inner wall of a second side surface of the clamp body and close to a slot, and the fixed clamp groove is arranged along an axial direction of the clamp body, a main movable screw rod is threadedly penetrated on the first side surface of the clamp body, the main movable screw rod is opposite to the fixed clamp groove, and a movable clamp groove is arranged at an inner end of the main movable screw rod; S2. Making window frame fixture The fixture body is manufactured according to the thickness of the window frame, a threaded hole is opened on the first side of the fixture body and a secondary movable screw rod is inserted into the threaded hole; the position of the fixed clamping groove is determined on the inner wall of the second side of the fixture body according to the width of the gap between the window frame and the building structure, and a fixed clamping groove is opened, a threaded hole is opened on the first side of the fixture body at a phase position with the fixed clamping groove, and a main movable screw rod is inserted into the threaded hole, and an movable clamping groove opposite to the fixed clamping groove is set at the inner end of the main movable screw rod; S3, gap filling polyurethane foam sealant According to the length of the gap, cut two restraining sleeves of appropriate length, place the first restraining sleeve against the gap on the water-facing side of the outdoor window frame, set the main body spacer cover of the clamp on the window frame and clamp the first restraining sleeve in the fixed clamping groove, rotate the sub-active screw so that the inner end of the sub-active screw presses against the window frame to clamp the first restraining sleeve in the gap; fill the gap from the gap on the water-repelling side of the indoor window frame with polyurethane foam sealant, after filling, place the second restraining sleeve against the gap on the water-repelling side of the indoor window frame, rotate the main active screw so that the movable clamping groove presses against the second restraining sleeve, and remove the window frame clamp and the restraining sleeve after the polyurethane foam sealant swells and solidifies.

2. The construction method for restraining the expansion of polyurethane foam sealant in window frame installation according to claim 1, characterized in that: The clamp body is made of hard metal, and is round or square in shape. Its width is greater than the thickness of the window frame, and its length is 30mm.

3. The construction method for restraining the expansion of polyurethane foam sealant in window frame installation according to claim 1, characterized in that: The main movable lead screw and the auxiliary movable lead screw are made of hard metal and are both provided with an integrally formed handle.

4. The construction method for restraining the expansion of polyurethane foam sealant in window frame installation according to claim 1, characterized in that: The main movable screw rod and the movable clamping groove adopt a split structure, or the main movable screw rod and the movable clamping groove are rotatably connected.

5. The construction method for restraining the expansion of polyurethane foam sealant in window frame installation according to claim 1, characterized in that: The restraining sleeve adopts an electrical sleeve, the diameter of which is determined according to the width of the gap and the length is determined according to the length / width of the window frame.

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