A waterproof structure of external wall panel

Abstract

The invention discloses an external wallboard waterproof structure, which belongs to the technical field of building waterproofing, and comprises: a floor slab, a first external wallboard, and a second external wallboard, wherein a rubber sealing ring is arranged around the external wallboard; the first external wallboard and the second external wallboard are adjacent in the vertical direction and form a transverse joint, and the seam width is 18 to 20, and the rubber sealing ring is located in the middle of the transverse joint; a sealant is arranged on the inner side of the transverse joint, and a cavity is formed between the rubber sealing ring and the sealant. The invention makes the waterproof construction of the joints between the external wallboards coordinated with the main process, the construction process is reasonable, the construction is not affected by the environment, and the waterproof effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of building waterproofing, and in particular to a waterproof structure of an external wall panel. Background Art

[0002] When it comes to the industrialization of buildings and external concrete wall panels, the biggest difficulty is the waterproofing of horizontal and vertical joints. Specifically, not only does the waterproofing reliability need to be high, but it should also be coordinated with the main process of wall panel installation as much as possible to make the whole construction smooth; the application of sealant should be convenient and easy, and highly maintainable. The common shortcomings of traditional technologies are: the glue on the outside of the wall panel is not compatible with the main process on site: once the scaffolding is set up, industrialization has been discounted. If the glue is applied in a hanging basket, it will be greatly affected by the weather, and the sealing quality assurance rate of the glue will be reduced to some extent due to the inconvenience of operation. After operation, the aging resistance problem is prominent, and inspection and maintenance are also troublesome, making it difficult to implement many regulations for regular inspection and maintenance. More importantly, no effective isobaric cavity is formed. When it is rainy and windy, the vertical joints have a high leakage rate, and there is no way out for the infiltrated water, which will become a problem over time and aggravate the leakage. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide an external wall panel waterproof structure to solve the problem that the existing external wall panel waterproof construction is separated from the main process, which makes the process complicated, is greatly affected by weather and environment, the waterproof effect cannot be guaranteed, and it is easy to seep in and difficult to repair.

[0004] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0005] A waterproof structure of external wall panels comprises: a floor slab, a first external wall panel, and a second external wall panel, wherein the first external wall panel and the second external wall panel are provided with rubber sealing rings around their peripheries; the first external wall panel and the second external wall panel are adjacent to each other in the vertical direction and form a transverse joint with a joint width of 18 to 20, wherein the rubber sealing ring is located in the middle of the transverse joint; a sealant is provided on the inner side of the transverse joint, and a cavity is formed between the rubber sealing ring and the sealant.

[0006] Furthermore, corbels are provided on the inner edges of the first external wall panel and the second external wall panel, and the corbels are riveted to the fixing structure on the I-beam.

[0007] Furthermore, the height of the corbel is greater than 300.

[0008] Furthermore, the transverse edges of the first external wall panel and the second external wall panel are arranged in a step shape, and the steps are lower on the outside and higher on the inside.

[0009] Furthermore, drip grooves are provided on the upper transverse edges of the first external wall panel and the second external wall panel, and the length of the drip grooves is equivalent to the length of the corresponding transverse edges.

[0010] Furthermore, the transverse joint is coated with penetrating epoxy resin.

[0011] The waterproof structure of the external wall panels realized by the embodiment of the present invention has the waterproof distribution of the joints between the external wall panels in the process of manufacturing and installing the external wall panels to form structural waterproofing. During installation, it is coordinated with the main process calmly, and the whole process is smooth, simple and convenient. An isobaric wall is formed between the continuously preset rubber sealing ring in the seam and the foam strip, and the sealant outside the foam strip is applied from indoors, which is convenient to apply and not affected by the environment. The horizontal joint adopts a step structure with a low outside and a high inside, which has a good rainproof effect. The overall maintainability is strong, and the waterproofness is durable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of splicing external wall panels provided in an embodiment of the present invention;

[0013] Figure 2 A partial cross-sectional schematic diagram of an external wall panel provided in an embodiment of the present invention;

[0014] Figure 3 A schematic diagram of a waterproof structure of a horizontal joint provided by an embodiment of the present invention; DETAILED DESCRIPTION

[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with 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 used to limit the present invention.

[0016] The present invention provides a waterproof structure of an external wall panel, such as Figure 1 and Figure 2 As shown, it includes: a first external wall panel 10, a second external wall panel 20, and a floor panel 60. Figure 1 As shown, the first external wall panel 10 and the second external wall panel 20 are spliced ​​in the vertical direction to form a horizontal joint 50, and the width of the joint is about 18 to 20 mm; the first external wall panel 10 and the second external wall panel 20 are rectangular or square, and the size is the same or different; the first external wall panel 10 and the second external wall panel 20 are provided with a rubber sealing ring around them, such as a nitrile rubber sealing ring. Specifically, the sealing ring is solid or hollow, and is pre-installed and glued around the external panels in the factory, and the panels are directly assembled and pressed on site.

[0017] like Figure 2 and Figure 3As shown, a sealing rubber ring 1 is arranged on the periphery of the first external wall panel 10, a sealing rubber ring 2 is arranged on the periphery of the second external wall panel 20, and a sealing rubber ring 5 is arranged on the periphery; the middle of the vertical joint 40 is a rubber sealing ring 1 and a rubber sealing ring 5 which are squeezed against each other; the middle of the horizontal joint 50 is a rubber sealing ring 1 and a rubber sealing ring 2 which are squeezed against each other; a foam strip 3 and a sealant 4 which is applied from indoors to the foam strip are arranged on the inner side of the horizontal joint 50, and a cavity is formed between the rubber sealing ring and the sealant. The sealant application is moved indoors, above the height of the skirting, and where there are no obstacles. The operating environment is good, the working condition of the glue is good, and it is durable and reliable. The main process on site is to hoist the external wall panels, and the subsequent indoor glue application also becomes easy. The stainless steel plate embedded in the vertical seam can be embedded at any appropriate time by various means because of the quick application. The overall flow operation is formed, and there is no time delay on site. After the glue is applied, standardized protective measures should be taken immediately, and the measures should be maintained for 72 hours.

[0018] The inner edges of the first external wall panel and the second external wall panel are provided with corbels, such as Figure 2 The corbel 11 provided on the inner side of the first external wall panel is shown, and the corbel 11 abuts against the floor 60 and is riveted to the fixed structure on the floor 60. The height of the corbel 11 is greater than the height of the skirting 70. The horizontal joint is designed to be at the same height as the corbel, so that the horizontal joint is about 300mm away from the upper surface of the floor, which is convenient for subsequent gluing operations. The plane position of the corbel avoids structural beams and columns, so that there are fewer obstacles when gluing the horizontal and vertical joints. When installing, it can be anchored after simple placement, positioning, and fine-tuning.

[0019] In order to further enhance the function of the external wall panels in resisting rainwater intrusion, the horizontal edges of the external wall panels are set in a step shape, such as Figure 2 The lateral edges of the first external wall panel 10 and the second external wall panel 20 are arranged in a step shape, and the steps are low outside and high inside. Figure 2As shown, the inner part 12 of the step of the upper horizontal edge of the first external wall panel 10 is higher than the outer part 13, and the inner part 21 of the step of the lower horizontal edge of the second external wall panel 20 matched therewith is higher than the outer part 22, which can effectively prevent rainwater from penetrating from the horizontal joint. Further, the first external wall panel and the second external wall panel are provided with drip grooves on the upper horizontal edges, and the length of the drip grooves is equivalent to the length of the corresponding horizontal edges. Drain pipes are pre-installed in the first external wall panel and the second external wall panel. When rainwater penetrates into the joint, it can be discharged in time through the drip grooves and the drain pipes. The drip grooves should be made directly from the concrete board, with a width of 20mm and a depth of 15mm, and the outer groove line is inclined outward by 60°. The horizontal joint is coated with penetrating epoxy resin. At the glue application site, the penetrating epoxy resin is applied and pre-applied in the factory, and only one layer is required. Before applying the sealant, the seam is clean, and after the polyethylene foam strip is pushed in, a thin layer of penetrating epoxy resin is applied. Before coating, masking tape should be applied on both sides of the board seam for protection. The polyurethane sealant should be a low-modulus product specially made for industrial wall panels.

[0020] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the present invention is not limited thereby. Any modification, equivalent substitution and improvement made by those skilled in the art without departing from the scope and essence of the present invention shall be within the scope of the present invention.

Claims

1. A waterproof structure of an external wall panel, comprising: A floor slab, a first external wall panel, and a second external wall panel, wherein the first external wall panel and the second external wall panel are provided with rubber sealing rings around their peripheries; The first external wall panel and the second external wall panel are adjacent to each other in the vertical direction and form a transverse joint with a width of 18 to 20 mm, and the rubber sealing ring is located in the middle of the transverse joint; a sealant is arranged on the inner side of the transverse joint, and a cavity is formed between the rubber sealing ring and the sealant; corbels are arranged on the inner edges of the first external wall panel and the second external wall panel, and the corbels on the inner side of the first external wall panel abut against the floor slab and are riveted to the fixed structure on the floor slab, and the height of the corbels is greater than the height of the skirting board, and the position of the transverse joint is designed to be at the same height as the corbels.

2. The waterproof structure of the external wall panel according to claim 1 is characterized in that: The height of the corbel is greater than 300 mm.

3. The waterproof structure of the external wall panel according to claim 1 is characterized in that: The transverse edges of the first external wall panel and the second external wall panel are arranged in a step shape, and the steps are lower on the outside and higher on the inside.

4. The waterproof structure of the external wall panel according to claim 3 is characterized in that: The first external wall panel and the second external wall panel are provided with drip grooves on the upper transverse edges, and the length of the drip grooves is equal to the length of the corresponding transverse edges.

5. The waterproof structure of the external wall panel according to claim 1 is characterized in that: The inside of the transverse joint is coated with penetrating epoxy resin.

Images