Assembly type roof waterproof protective layer joint structure

Abstract

The utility model discloses an assembled roof waterproof protective layer joint structure relates to building construction technical field, including first roof panel, the other side of first roof panel is provided with second roof panel, and the other side of first roof panel is fixedly installed with the lug, and the recess is opened to one side of second roof panel, and the lug is movably inserted in the inner chamber of recess, and the gap is formed between first roof panel and second roof panel, and the inner chamber of gap is filled with pitch mortar layer, and the top of pitch mortar layer is coated with elastic sealant layer, and the top of elastic sealant layer is coated with modified pitch sealing paste layer, and the design of gap provides the standard filling space for sealant. Elastic sealant layer can effectively adapt to the tiny deformation of roof panel caused by thermal expansion and cold shrinkage etc.

Description

Technical Field

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

[0002] With the rapid development of industrialized construction, prefabricated buildings have been widely used due to their advantages such as fast construction speed and low environmental pollution. However, in the construction of prefabricated roofs, the joints between prefabricated panels are a weak point in waterproofing.

[0003] Traditional construction methods have the following drawbacks: First, the hoisting and positioning of panels mainly relies on manual labor, which has large errors and results in inconsistent joint widths, making subsequent sealing difficult; second, the sealing of joints in complex areas such as the base of parapet walls and pipe roots is difficult, and traditional sealing materials are prone to aging and cracking under the influence of roof temperature changes and vibrations, resulting in a high leakage rate and seriously affecting the service life of the building. Summary of the Invention

[0004] The purpose of this utility model is to provide a prefabricated roof waterproof protective layer splicing structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A prefabricated roof waterproof protective layer splicing structure includes a first roof panel and a second roof panel disposed on the other side of the first roof panel; a protrusion is fixedly installed on the other side of the first roof panel, and a groove is opened on one side of the second roof panel, with the protrusion movably inserted into the inner cavity of the groove, forming a gap between the first roof panel and the second roof panel, and the inner cavity of the gap is filled with an asphalt mortar layer, the top of the asphalt mortar layer is coated with an elastic sealant layer, and the top of the elastic sealant layer is coated with a modified asphalt sealant layer.

[0006] Preferably, the width of the asphalt mortar layer is 8-12 mm.

[0007] Preferably, the top surface of the elastic sealant layer is 1-2 mm higher than the upper surface of the first and second roof panels, forming a continuous arc-shaped sealing surface.

[0008] Preferably, the modified bitumen sealant layer has a thickness of 1.5-2 mm and a width of 20 mm.

[0009] Preferably, two guide blocks are fixedly installed on the other side of the first roof panel near both the front and rear ends, and two adjacent guide blocks are arranged vertically. Slots are opened on the opposite sides of the two adjacent guide blocks. Two rectangular slots are opened on one side of the second roof panel near both the front and rear ends, and two adjacent rectangular slots are arranged vertically. The guide blocks respectively movably penetrate the inner cavity sidewall of the corresponding rectangular slot. T-shaped plugs are movably inserted into the inner cavity of the slots, and reset telescopic rods are fixedly installed on the T-shaped plugs near both sides. The ends of the reset telescopic rods are fixedly connected to the inner cavity of the corresponding rectangular slots.

[0010] Preferably, a reset spring is movably sleeved on the outer periphery of the reset telescopic rod, and the two ends of the reset spring are fixedly connected to the T-shaped insert and the inner cavity of the rectangular groove, respectively.

[0011] This invention achieves rapid and precise alignment of panels through the interlocking of protrusions and grooves, controlling installation errors to the millimeter level and ensuring uniform and neat joints, laying the foundation for high-quality sealing. The gap design provides standard filling space for the sealant, and the elastic sealant layer can effectively adapt to minor deformations of the roof panel caused by thermal expansion and contraction, maintaining the integrity and durability of the seal and reducing the joint leakage rate from the traditional 5% to below 0.8%. The double sealing structure provides an additional waterproof barrier, further extending the service life of the roof waterproofing system. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the protrusion, groove and guide block in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0013] In the diagram: 1. First roof panel; 2. Second roof panel; 3. Protrusion; 4. Groove; 5. Asphalt mortar layer; 6. Elastic sealant layer; 7. Modified asphalt sealant layer; 8. Guide block; 9. Slot; 10. Rectangular groove; 11. Reset telescopic rod; 12. T-shaped insert; 13. Reset spring. Detailed Implementation

[0014] 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.

[0015] like Figures 1 to 4 As shown, this embodiment provides a prefabricated roof waterproof protective layer splicing structure, including a first roof panel 1, a second roof panel 2 disposed on the other side of the first roof panel 1, and the first roof panel 1 and the second roof panel 2 are connected end to end; a protrusion 3 is fixedly installed on the other side of the first roof panel 1 (the side that is connected to the second roof panel 2), and a groove 4 is opened on one side of the second roof panel 2 (the side that is connected to the first roof panel 1), and the protrusion 3 on the first roof panel 1 is movably inserted into the inner cavity of the groove 4 on the second roof panel 2; a gap is formed at the joint of the first roof panel 1 and the second roof panel 2, and the inner cavity of the gap is filled with an asphalt mortar layer 5, an elastic sealant layer 6 is coated on the top of the asphalt mortar layer 5, and a modified asphalt sealant layer 7 is coated on the top of the elastic sealant layer 6.

[0016] As a rigid filler layer, the asphalt mortar layer 5 effectively seals gaps in the base layer; the elastic sealant layer 6 acts as a flexible main body, adapting to deformations caused by thermal expansion and contraction of the roof panels; and the outermost modified asphalt sealant layer 7 provides excellent weather resistance and additional protection. These three layers work together to achieve a synergistic waterproofing effect of "rigid support, flexible adaptation, and surface protection," minimizing the risk of leakage. In practice, the width of the asphalt mortar layer 5 is 8-12mm.

[0017] A gap width of 8-12mm is a proven optimal range. This width ensures sufficient space for the sealant to fill and form an effective seal, while also maintaining the structural strength of the joint and preventing it from becoming a weak point.

[0018] The top surface of the elastic sealant layer 6 is 1-2 mm higher than the upper surface of the first roof panel 1 and the second roof panel 2, forming a continuous arc-shaped sealing surface. This design, which is 1-2 mm higher than the panel surface and shaped into an arc-shaped sealing surface, is crucial. First, it ensures the thickness of the sealant and provides sufficient deformation allowance. Second, the smooth arc-shaped surface facilitates the rapid drainage of rainwater, preventing water accumulation and erosion of the joints. It also reduces the accumulation of dust at the joints, improving durability.

[0019] The modified bitumen sealant layer 7 has a thickness of 1.5-2 mm and a width of 20 mm. As the outermost protective layer, the modified bitumen sealant layer 7, with its 1.5-2 mm thickness and 20 mm width, can fully cover the underlying elastic sealant layer 6, shielding it from ultraviolet radiation, drastic temperature changes, and physical wear, thus significantly extending the service life of the entire sealing system.

[0020] On the other side of the first roof panel 1 (the side that connects with the second roof panel 2), two guide blocks 8 are fixedly installed near both the front and rear ends, and two adjacent guide blocks 8 are arranged vertically. Slots 9 are opened on the opposite sides of the two adjacent guide blocks 8. On one side of the second roof panel 2 (the side that connects with the first roof panel 1), rectangular slots 10 are opened near both the front and rear sides, and two adjacent rectangular slots 10 are arranged vertically. The guide blocks 8 respectively movably penetrate the inner cavity sidewall of the corresponding rectangular slot 10. T-shaped inserts 12 are movably inserted into the inner cavity of the slots 9, and reset telescopic rods 11 are fixedly installed on the T-shaped inserts 12 near both sides. The ends of the reset telescopic rods 11 are fixedly connected to the inner cavity of the corresponding rectangular slots 10. The cooperation between guide block 8 and rectangular groove 10 provides a second precise positioning system based on protrusion 3 and groove 4, further ensuring that large roof panels will not be tilted or misaligned during installation. When guide block 8 is inserted into rectangular groove 10 and in place, T-shaped insert 12 will automatically spring into slot 9 on guide block 8 under the push of reset telescopic rod 11, forming a mechanical lock. This greatly enhances the horizontal connection strength between panels, effectively resists external forces such as wind loads, prevents panel detachment, and improves the stability and safety of the overall structure. In addition, in order to make it easier and smoother for T-shaped insert 12 to be inserted into slot 9 on guide block 8, the opposite ends of two adjacent guide blocks 8 are designed as arcs, and arc protrusions are set at the bottom of T-shaped insert 12. When guide block 8 is inserted into rectangular groove 10, the arc-shaped end of guide block 8 abuts against the arc protrusion of T-shaped insert 12 and smoothly slides relative to it, so that T-shaped insert 12 can be easily and smoothly locked into slot 9 of guide block 8.

[0021] A return spring 13 is movably sleeved on the outer periphery of the return telescopic rod 11, and the two ends of the return spring 13 are fixedly connected to the T-shaped insert 12 and the inner cavity of the rectangular groove 10, respectively. The return spring 13 provides a continuous preload to the T-shaped insert 12 to ensure that the locking mechanism will not loosen under vibration.

[0022] The construction steps for the prefabricated roof waterproofing protective layer joint structure described in this embodiment are as follows: 1) Clean the dirt off the surfaces of the protrusions 3 and grooves 4, ensuring they are dry and clean.

[0023] 2) Use a curved grouting spoon to take asphalt mortar at a temperature of 100-110℃ and fill it into groove 4. The filling depth is 1 / 3 of the depth of groove 4. Use the grouting spoon to repeatedly compact along the arc of groove 4. For every 500mm length filled, compact 3-4 times to remove air bubbles and ensure that the mortar is tightly adhered to the inner wall of groove 4.

[0024] 3) Immediately insert the protrusion 3 of the first roof panel 1 slowly into the groove 4 using hoisting equipment. The insertion speed should be ≤50mm / s. Gently tap the end of the first roof panel 1 with a rubber hammer with a force of 0.3-0.5kN to ensure that the protrusion 3 and the groove 4 are precisely aligned. During this process, observe the mortar overflow. The overflow should be controlled within 5-10mm around the interface to prove that the filling is full. 4) Perform the sealing operation. Select qualified silicone sealant, load it into the caulking gun, and install a nozzle with a diameter of approximately 10mm. Insert the nozzle into one end of the gap at a 45-60 degree angle, and push the caulking gun at a uniform speed to fill the entire gap with sealant, ensuring that the top surface of the sealant is slightly higher than the board surface. Immediately afterwards, use a curved scraper to smooth the surface of the sealant, forming a smooth and continuous curved sealing surface, which constitutes the elastic sealant layer 6.

[0025] 5) After the sealant surface is dry, apply a layer of modified asphalt sealant 7 with a thickness of 1.5-2mm and a width of 20mm on the outside of the elastic sealant layer 6 to form a double sealing structure of "mortar + sealant". Let it stand to cure.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated roof waterproof protective layer splicing structure, comprising a first roof panel (1), and a second roof panel (2) disposed on the other side of the first roof panel (1), characterized in that: A protrusion (3) is fixedly installed on the other side of the first roof panel (1), and a groove (4) is provided on one side of the second roof panel (2). The protrusion (3) is movably inserted into the inner cavity of the groove (4). A gap is formed between the first roof panel (1) and the second roof panel (2), and the inner cavity of the gap is filled with an asphalt mortar layer (5). An elastic sealant layer (6) is coated on the top of the asphalt mortar layer (5), and a modified asphalt sealant layer (7) is coated on the top of the elastic sealant layer (6).

2. The prefabricated roof waterproof protective layer splicing structure according to claim 1, characterized in that: The width of the asphalt mortar layer (5) is 8-12 mm.

3. The joint structure of the prefabricated roof waterproof protective layer according to claim 1, characterized in that: The top surface of the elastic sealant layer (6) is 1-2 mm higher than the upper surface of the first roof panel (1) and the second roof panel (2), forming a continuous arc-shaped sealing surface.

4. The joint structure of the prefabricated roof waterproof protective layer according to claim 1, characterized in that: The modified bitumen sealant layer (7) has a thickness of 1.5-2 mm and a width of 20 mm.

5. The joint structure of the prefabricated roof waterproof protective layer according to claim 1, characterized in that: Two guide blocks (8) are fixedly installed on the other side of the first roof panel (1) near the front and rear ends, and the two adjacent guide blocks (8) are set vertically. The opposite side of the two adjacent guide blocks (8) is provided with slots (9). Two rectangular slots (10) are opened on one side of the second roof panel (2) near the front and rear ends, and the two adjacent rectangular slots (10) are set vertically. The guide blocks (8) respectively move through the inner cavity sidewall of the corresponding rectangular slot (10). The inner cavity of the slot (9) is movably inserted with T-shaped plugs (12), and the T-shaped plugs (12) are fixedly installed on both sides. The ends of the reset telescopic rods (11) are fixedly connected to the inner cavity of the corresponding rectangular slots (10).

6. The joint structure of the prefabricated roof waterproof protective layer according to claim 5, characterized in that: The outer periphery of the reset telescopic rod (11) is movably fitted with a reset spring (13), and the two ends of the reset spring (13) are fixedly connected to the T-shaped insert (12) and the inner cavity of the rectangular groove (10), respectively.

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