A gap sealing column for prefabricated houses

Abstract

This utility model relates to the field of sealing technology for prefabricated buildings, specifically to a gap-sealing column for prefabricated houses. The gap-sealing column provided by this utility model includes an H-beam body, which is composed of a central web and vertically arranged flanges at both ends. The outer side of the H-beam body is wrapped with an elastic wrapping layer with a thickness of 8-12mm. Double-sided adhesive layers are provided on both sides of the web of the H-beam body. The elastic wrapping layer has longitudinal grooves extending along the length of the flanges on the inner side of the flanges, and sealing strips are inserted into these longitudinal grooves. This utility model uses a high-resilience closed-cell sponge material in the elastic wrapping layer, which can adapt to changes in the shape of the gap. Combined with the sealing strips filling the longitudinal grooves, it forms multiple sealing barriers, effectively preventing dust and moisture penetration.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology for prefabricated buildings, specifically to a gap sealing column for prefabricated houses. Background Technology

[0002] As a representative of industrialized construction, prefabricated houses mostly connect their side panels, supports, and other components through splicing. The sealing performance of the splicing gaps directly affects the sound insulation, heat preservation, and waterproofing effects of the house.

[0003] Traditional gap sealing primarily relies on mechanical fasteners such as bolts. This method requires through holes in the joints, which not only compromises structural integrity but also presents problems such as time-consuming installation, bolts being prone to corrosion and loosening, and sealing materials being susceptible to shear failure. It fails to meet the demands of rapid installation and long-term sealing in prefabricated housing. Therefore, a gap sealing structure that balances sealing performance, connection stability, and ease of installation is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a gap sealing column for prefabricated houses, which solves the problems of low sealing efficiency and easy loosening of traditional bolted connections through a multi-layer composite structure design.

[0005] The technical solution provided by this utility model is a gap sealing column for prefabricated houses, including an H-beam body. The H-beam body is composed of a central web and vertically arranged flanges at both ends. The outer side of the H-beam body is wrapped with an elastic wrapping layer with a thickness of 8-12mm. The H-beam body has double-sided adhesive layers on both sides of the web. The elastic wrapping layer has a longitudinal groove extending along the length of the flange on the inner side of the flange of the H-beam body, and a sealing strip is inserted into the longitudinal groove.

[0006] As a preferred embodiment of this utility model, the elastic wrapping layer is a closed-cell sponge material with a density of 30-50 kg / m³. 3 Compression resilience ≥90%.

[0007] As a preferred embodiment of this utility model, the double-sided adhesive layer is composed of a foamed substrate layer and high-viscosity adhesive layers on both sides, wherein the foamed substrate layer is polyurethane foam or EVA foam with a thickness of 1.5-3mm and a compression rate of 20-40%, and the high-viscosity adhesive layer is a modified acrylic pressure-sensitive adhesive with an initial adhesion force ≥15N / 25mm.

[0008] As a preferred embodiment of this utility model, a reinforcing interface layer is provided between the elastic wrapping layer and the double-sided adhesive layer, and the reinforcing interface layer is a polyester nonwoven fabric.

[0009] As a preferred embodiment of this invention, the outer surface of the double-sided adhesive layer is provided with a peelable release paper.

[0010] As a preferred technical solution of this utility model, the web of the H-beam body is provided with a plurality of weight-reducing holes distributed at equal intervals, and the width of the weight-reducing holes is 1 / 4 to 1 / 2 of the width of the web.

[0011] As a preferred embodiment of this utility model, the sealing strip protrudes 3-5mm from the inner surface of the elastic wrapping layer at the wing plate.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] 1. Optimized sealing performance: The elastic wrapping layer uses high-resilience closed-cell sponge material, which can adapt to changes in the shape of the gap. Combined with the sealing strip filling the longitudinal groove, it forms multiple sealing barriers to effectively prevent dust and moisture penetration.

[0014] 2. Improved connection stability: The double-sided adhesive layer is combined with the foam substrate through high-viscosity modified acrylic pressure-sensitive adhesive, which not only ensures strong adhesion to the splicing parts (initial adhesion ≥15N / 25mm), but also buffers external stress through compression ratio design (20-40%) to prevent detachment;

[0015] 3. Strong structural adaptability: The reinforced interface layer (polyester non-woven fabric) strengthens the bond between the elastic wrapping layer and the double-sided adhesive layer, preventing delamination; the weight-reducing holes in the H-beam web reduce the overall weight and facilitate installation.

[0016] 4. Improved installation convenience: The release paper on the outer surface of the double-sided adhesive layer protects the adhesive layer. It can be directly peeled off and pasted during use without the need for additional drilling or bolt fixing, thus shortening the construction cycle. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a gap-sealing column for prefabricated houses according to the present invention.

[0018] Figure 2 This is a cross-sectional three-dimensional structural diagram of a gap sealing column for prefabricated houses according to the present invention.

[0019] Figure 3 This is an enlarged view of section A of the gap sealing column for prefabricated houses according to this utility model.

[0020] Figure 4 This is a structural diagram of the H-beam steel main body of a gap sealing column for prefabricated houses according to the present invention.

[0021] As shown in the figure:

[0022] 1. H-beam body; 2. Elastic wrapping layer; 3. Double-sided adhesive layer; 4. Longitudinal groove; 5. Sealing strip; 6. Foamed substrate layer; 7. High-adhesion adhesive layer; 8. Reinforcing interface layer; 9. Release paper; 10. Weight reduction holes. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1:

[0026] As per the instruction manual Figure 1-4 As shown, a gap-sealing column for prefabricated houses includes an H-beam body 1, which is composed of a central web and vertically arranged flanges at both ends. The web of the H-beam body 1 has multiple weight-reducing holes 10 evenly spaced, each hole being one-third the width of the web. An elastic wrapping layer 2, 10mm thick, is wrapped around the outside of the H-beam body 1. The elastic wrapping layer 2 is a closed-cell sponge material with a density of 40kg / m³. 3 Compression resilience ≥90%.

[0027] In this utility model, the H-beam body 1 has double-sided adhesive layers 3 on both sides of the web. The double-sided adhesive layers 3 are composed of a foamed substrate layer 6 and high-viscosity adhesive layers 7 on both sides. The foamed substrate layer 6 is polyurethane foam or EVA foam with a thickness of 2mm and a compression rate of 20-40%. The high-viscosity adhesive layer 7 is a modified acrylic pressure-sensitive adhesive with an initial adhesion force ≥15N / 25mm. An reinforcing interface layer 8 is provided between the elastic wrapping layer 2 and the double-sided adhesive layers 3. The reinforcing interface layer 8 is a polyester non-woven fabric. The outer surface of the double-sided adhesive layers 3 is provided with a peelable release paper 9.

[0028] In this utility model, the elastic wrapping layer 2 is located on the inner side of the flange of the H-beam body 1 and has a longitudinal groove 4 extending along the flange length direction. A sealing strip 5 is inserted into the longitudinal groove 4 and the sealing strip 5 protrudes 4mm from the inner surface of the elastic wrapping layer 2 at the flange.

[0029] Working principle

[0030] 1. Initial positioning and fixing: After peeling off the release paper 9, the high-viscosity adhesive layer 7 of the double-sided adhesive layer 3 comes into contact with the surface of the prefabricated house side panel, and the position of the sealing column is initially fixed by the intermolecular force;

[0031] 2. Elastic buffer and sealing filling: The elastic wrapping layer 2 (closed-cell sponge) undergoes elastic deformation under the pressure of the splicing gap, closely conforming to the contour of the gap. At the same time, the sealing strip 5 in the longitudinal groove 4 is compressed and filled into the tiny gap, forming a sealing barrier.

[0032] 3. Stress dispersion and weight reduction: The reinforcing interface layer 8 (polyester non-woven fabric) enhances the bonding force between the elastic wrapping layer 2 and the double-sided adhesive layer 3, preventing delamination and peeling; the weight reduction holes 10 in the H-beam web reduce the overall weight.

[0033] 4. Multi-directional adaptability: The compression ratio design (20-40%) of the double-sided adhesive layer 3 allows it to adapt to forces in different directions (such as tension and shear), ensuring that the sealing column remains stable under the conditions of thermal expansion and contraction or vibration in prefabricated houses.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A gap-sealing column for prefabricated houses, comprising an H-beam body (1), the H-beam body (1) being composed of a central web and vertically arranged flanges at both ends, characterized in that: The outer side of the H-beam body (1) is wrapped with an elastic wrapping layer (2), and the thickness of the elastic wrapping layer (2) is 8-12mm. The H-beam body (1) has double-sided adhesive layers (3) on both sides of the web. The elastic wrapping layer (2) is located on the inner side of the flange of the H-beam body (1) and has a longitudinal groove (4) extending along the flange length direction, and a sealing strip (5) is inserted into the longitudinal groove (4).

2. A joint sealing column for prefabricated houses according to claim 1, characterized in that: The elastic wrapping layer (2) is a closed-cell sponge material with a density of 30-50 kg / m³. 3 Compression resilience ≥90%.

3. A joint sealing column for prefabricated houses according to claim 1, characterized in that: The double-sided adhesive layer (3) consists of a foamed substrate layer (6) and high-viscosity adhesive layers (7) on both sides. The foamed substrate layer (6) is polyurethane foam or EVA foam with a thickness of 1.5-3mm and a compression rate of 20-40%. The high-viscosity adhesive layer (7) is a modified acrylic pressure-sensitive adhesive with an initial adhesion force ≥15N / 25mm.

4. A joint sealing column for prefabricated houses according to claim 1, characterized in that: An reinforcing interface layer (8) is provided between the elastic wrapping layer (2) and the double-sided adhesive layer (3), and the reinforcing interface layer (8) is a polyester nonwoven fabric.

5. A joint sealing column for prefabricated houses according to claim 1, characterized in that: The outer surface of the double-sided adhesive layer (3) is provided with a peelable release paper (9).

6. A joint sealing column for prefabricated houses according to claim 1, characterized in that: The web of the H-beam body (1) is provided with a plurality of weight-reducing holes (10) distributed at equal intervals, and the width of the weight-reducing holes (10) is 1 / 4 to 1 / 2 of the width of the web.

7. A joint sealing column for prefabricated houses according to claim 1, characterized in that: The sealing strip (5) protrudes 3-5mm from the inner surface of the elastic wrapping layer (2) at the wing plate.

Images