Waterproofable prefabricated roof structure

Abstract

The utility model relates to building prefabricated structure technical field especially waterproof prefabricated roof structure, including prefabricated roof, the side wall of prefabricated roof is connected with the joint strip of filling, the top surface of prefabricated roof is brushed with special coating layer, the top surface of prefabricated roof is provided with waterproof layer. The device between the pre roof body, through the interlocking installation of mortise groove and tenon convex, so that the prefabricated roof forms the roof structure of whole, before the splicing construction of prefabricated roof, the joint strip of filling of prefabricated roof side is softened by high temperature heating and makes it melt, when the prefabricated roof mortise splicing, the joint strip of melt softening fills the inside of mortise joint, when the prefabricated plate body splicing is completed, the waterproof layer bottom surface of the part of the pre roof is heated to melt and soften, and the waterproof layer after heating is pasted with the top surface of both sides prefabricated roof, thereby the waterproof treatment of the top surface of joint is carried out, so that prefabricated roof whole has good waterproof effect.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building structure technology, specifically to a waterproof prefabricated roof structure. Background Technology

[0002] Precast roof structures refer to roof systems where load-bearing components are manufactured in factories using industrialized methods, transported to the construction site, and then rapidly assembled using reliable mechanical connections. It is a core component of industrialized building construction (prefabricated construction), aiming to comprehensively improve the quality, efficiency, and performance of buildings.

[0003] Chinese utility model patent CN214575024U discloses a prefabricated roof structure, including a "core panel, with a keel below the core panel and a functional panel below the keel." After the prefabricated roof panel is installed, subsequent roof construction procedures are required on the top surface of the roof panel, such as laying a waterproof layer, an insulation layer, and a roof layer. However, due to the prefabricated nature of the building, the roof panel is constructed by splicing multiple prefabricated panels together, resulting in numerous splicing seams. The presence of these seams leads to a significant risk of hidden leaks in the roof waterproofing. Special treatment is required at the splicing seams during waterproofing construction, such as adding an additional waterproof layer. The waterproofing construction process is cumbersome, complex, and time-consuming, resulting in poor practicality. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof prefabricated roof structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof prefabricated roof structure, including a prefabricated roof slab, wherein a sealant strip is fixedly connected to the side wall of the prefabricated roof slab;

[0006] The top surface of the precast roof slab is coated with a special coating layer, and the top surface of the precast roof slab is provided with a waterproof layer.

[0007] The precast roof slab has tenon grooves on one side of adjacent sides and tenon protrusions on the other side of adjacent sides.

[0008] The beneficial effects of this utility model are as follows: This device connects the precast roof slabs by tenon joints and tenon protrusions on the sides of the precast roof slabs, thus forming an integral roof structure. Before splicing the precast roof slabs, the caulking strips on the sides of the precast roof slabs are heated at high temperature to melt and soften them. During the tenon joint splicing of the precast roof slabs, the melted and softened caulking strips fill the inside of the tenon joints. The caulking strips fill the joints, thus preventing roof moisture from seeping through the joints and causing roof leakage. After the precast slabs are spliced, the bottom surface of the waterproof layer extending from the precast roof slab is heated at high temperature to melt and soften it. The heated waterproof layer is then laid on the top surface of the precast roof slabs on both sides, thus waterproofing the top surface of the joints. The method of internal filling and top surface laying gives the precast roof slabs a good overall waterproof effect.

[0009] To ensure effective prevention of leakage at the joints of precast roof slabs:

[0010] A further configuration is made whereby the sealant strip is located on the side of the tenon protrusion.

[0011] By adopting the above technical solution, before the precast roof slabs are joined by tenon and mortise, the joint filler strip is heated at high temperature to melt and soften it. When the precast roof slabs are joined by tenon and mortise, the joint is filled with the melted and softened joint filler strip to avoid leakage.

[0012] To effectively extend the lifespan and performance of precast roof slab waterproof structures:

[0013] The special coating layer is further configured such that it is located between the precast roof slab and the waterproof layer.

[0014] By adopting the above technical solution, a special coating, such as a microcapsule repair agent containing polyurethane prepolymer, can be applied to the entire surface of the precast roof slab before the waterproof layer is installed. When cracks or damage occur on the surface of the precast roof slab, the microcapsules rupture and release the prepolymer. The prepolymer reacts with moisture or other curing agents in the environment to form a polyurethane elastomer. When the crack width is ≤0.3mm, it can automatically repair itself, thereby achieving the effect of repairing damage and greatly extending the service life of the roof structure's waterproofing.

[0015] To achieve an effective waterproof structure at the joints of the precast roof:

[0016] A further setting is made: the length of the waterproof layer on the side of the tenon protrusion should extend beyond the precast top slab.

[0017] By adopting the above technical solution, after the precast panels are joined by tenon joints, the protruding part of the waterproof layer is heated at high temperature to melt and soften it, and then laid on the top surface of the adjacent precast top surface, thereby waterproofing the top surface of the joint and forming an effective waterproof layer structure. The construction operation is simple.

[0018] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a front view schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This is an exploded view of the overall structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the precast panel of this utility model.

[0024] In the diagram: 1. Precast roof slab; 11. Mortise and tenon groove; 12. Mortise and tenon protrusion; 2. Joint sealant strip; 3. Special coating layer; 4. Waterproof layer. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0026] Please see Figures 1 to 5 A waterproof prefabricated roof structure, including a prefabricated roof slab 1, with a sealant strip 2 fixedly connected to the side wall of the prefabricated roof slab 1;

[0027] The top surface of the precast roof slab 1 is coated with a special coating layer 3, and the top surface of the precast roof slab 1 is provided with a waterproof layer 4.

[0028] The precast roof slab 1 has tenon grooves 11 on the adjacent two sides of one side and tenon protrusions 12 on the adjacent two sides of the other side.

[0029] In this embodiment, as Figure 3 , Figure 4 and Figure 5 As shown, the grout strip 2 is located on the side of the tenon protrusion 12.

[0030] In this embodiment, as Figure 3 and Figure 4 As shown, the special coating layer 3 is located between the precast roof slab 1 and the waterproof layer 4.

[0031] In this embodiment, as Figure 3As shown, the waterproof layer 4 extends beyond the side of the tenon protrusion 12 by a length that extends beyond the precast top plate 1.

[0032] The working process of this waterproof prefabricated roof structure is as follows:

[0033] First, the precast roof slabs 1 are joined together by tenon joints 11 and tenon protrusions 12 to form an integral roof structure. Before splicing the precast roof slabs 1, the caulking strips 2 on the sides of the precast roof slabs 1 are heated at high temperature to melt and soften them. When splicing the precast roof slabs 1, the melted and softened caulking strips 2 fill the inside of the tenon joint. The caulking strips 2 fill the inside of the joint to prevent roof moisture from seeping through the joint. After the precast roof slabs 1 are spliced, the bottom surface of the waterproof layer 4 extending from the precast roof slabs 1 is heated at high temperature to melt and soften it. The heated waterproof layer 4 is then laid on the top surface of the precast roof slabs 1 on both sides to waterproof the top surface of the joint, so that the precast roof slabs 1 as a whole have a good waterproof effect.

[0034] Before the waterproof layer 4 is installed, a special coating layer 3 can be applied to the top surface of the precast roof slab 1. This will create a tight connection between the precast roof slab 1 and the waterproof layer 4, while greatly extending the service life and effectiveness of the waterproof structure of the precast roof slab 1.

[0035] The waterproof layer 4 can be made of existing known materials, such as modified bitumen waterproof membrane, with a thickness of 3mm. It can be made of the materials mentioned above, but is not limited to them.

[0036] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A waterproof prefabricated roof structure, comprising a prefabricated roof slab (1), characterized in that: The precast top slab (1) is fixedly connected to the side wall with a sealant strip (2); The top surface of the precast roof slab (1) is coated with a special coating layer (3), and the top surface of the precast roof slab (1) is provided with a waterproof layer (4). The precast top slab (1) has tenon grooves (11) on one side of adjacent sides and tenon protrusions (12) on the other side of adjacent sides.

2. The waterproof prefabricated roof structure as described in claim 1, characterized in that: The grout strip (2) is located on the side of the tenon protrusion (12).

3. The waterproof prefabricated roof structure as described in claim 1, characterized in that: The special coating layer (3) is located between the precast roof slab (1) and the waterproof layer (4).

4. The waterproof prefabricated roof structure as described in claim 1, characterized in that: The waterproof layer (4) is located on the side of the tenon protrusion (12) and its length extends beyond the precast top plate (1).

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