A metal roof siphon internal drainage system

Abstract

This invention discloses a siphonic internal drainage system for metal roofs, comprising: an outer retaining wall for the roof; a waterproof layer; waterproof strips; a rainwater pipe; a siphonic rainwater hopper; an automatic water valve; and an I-shaped support. The I-shaped support is fastened to the ceiling with screws. The outer retaining wall is L-shaped, forming the outermost ring around the roof near the eaves. A siphonic rainwater hopper is installed near the eaves of the metal roof panel, with its bottom connected to the rainwater pipe. The rainwater pipe is arranged at the bottom of the metal roof panel, starting from the eaves and continuously extending to the center of the roof, where it connects to the automatic water valve. The automatic water valve is installed at the center of the roof and connected to the rainwater pipe. This invention is simple to install, integrating the roof and drainage system into a single unit; it offers a high safety factor and a clean appearance; and it solves safety problems such as rainwater dripping from the eaves, icicles falling in winter, and large-scale snowfall.

Description

Technical Field

[0001] This invention relates to a siphonic internal drainage system for metal roofs, belonging to the field of drainage technology. Background Technology

[0002] With the continuous development and application of steel structure buildings in recent years, thanks to its advantages such as light weight, high rigidity, and good durability (Huang Wei, Dong Weiming. Overview of the development and application classification of metal roofs [J]. Building Technology, 2015, 46(12): 1103-1107.), it has been widely used in the roofs of large-span and large-area buildings. However, modern buildings often have unique shapes and different shapes, which makes the drainage design of irregular roofs very complicated (Liu Zhizhong. Discussion on rainwater drainage design methods for irregular roofs [J]. Water Supply and Drainage, 2016, 52(03): 91-93.). At present, there are two commonly used methods: organized drainage and unorganized drainage. Among them, the most widely used roof drainage form is organized drainage (Liu Yan. Research on the optimized design of organized drainage for civil buildings in cold regions [D]. Harbin Institute of Technology, 2015.). The commonly used unorganized drainage method involves rainwater falling from the eaves to the ground under the influence of gravity, causing great inconvenience to pedestrians. In cold winters, due to the low temperature, icicles easily form on the eaves and are at risk of falling at any time, posing a great safety hazard. When there is a large amount of snow on the roof, there is also the risk of large-scale snow sliding. Organized external drainage, in cold regions, faces a series of frost damage problems such as ice freezing at the drain outlets, blocking the outlets and affecting drainage (Zhai Peng. Analysis of roof drainage in severe cold regions [J]. Building Materials and Decoration, 2020, (09): 8-9.). In addition, the external installation of rainwater pipes will affect the aesthetics of the building, making it difficult to meet the design requirements of some buildings that require no rainwater pipes on the exterior facade.

[0003] In view of this, there is an urgent need for those skilled in the art to develop an internal roof drainage system. Summary of the Invention

[0004] To overcome the shortcomings and defects of existing metal roof drainage systems, this invention provides a novel metal roof siphon internal drainage system, which is a completely new organized drainage solution.

[0005] The principle of this invention is as follows: by setting up an L-shaped water-retaining wall at the edge of the eaves, when it rains, rainwater from the roof will collect near the eaves along with the roof slope. When the depth of the collected rainwater is higher than the siphon rainwater hopper installed at the eaves, the siphon rainwater hopper's rectifier will prevent air from flowing into the rainwater hopper with the rainwater. The automatic water valve in this invention fills the rainwater pipes arranged on the roof with water during rainfall (the automatic water valve closes after the rainwater pipes are full). Under the combined action of the siphon rainwater hopper and the automatic water valve, no air is mixed into the rainwater hopper and rainwater pipes, forming a sealed space, thus generating a siphon effect. Under this effect, the rainwater collected at the eaves is continuously drawn into the rainwater hopper under atmospheric pressure, thereby achieving the purpose of drainage.

[0006] This invention provides a siphonic internal drainage system for metal roofs, comprising metal roof panels, T-shaped supports, a suspended ceiling, I-beams on the roof, and an insulation layer. The suspended ceiling is fastened to the I-beams with screws. The T-shaped supports are installed on the suspended ceiling, and the T-shaped supports and the suspended ceiling in contact with each other are fastened with screws. Each layer of metal roof panels is laid on the T-shaped supports and connected by fastening the locking heads of the T-shaped supports. The insulation layer fills the gaps between the metal roof panels and the suspended ceiling. The system also includes an outer perimeter wall for the roof; a waterproof layer; waterproof strips; rainwater pipes; siphonic rainwater hoppers; automatic water valves; and I-beam supports.

[0007] The I-beam supports are secured to the ceiling with screws. The outermost retaining wall of the roof is L-shaped, forming the outermost ring around the roof near the eaves. The retaining wall is also secured to the I-beam supports with screws and rests under the metal roof panels. The joints where the retaining wall overlaps with the metal roof panels are connected with waterproof sealing strips to form a single unit. Furthermore, the bottom surface and vertical corner sections of the L-shaped retaining wall must be covered with a waterproof layer and waterproof sealing strips to prevent leakage. Additional waterproofing measures should be taken around the screw holes.

[0008] Metal roofing panels consist of continuous profiled steel sheets with grooves and protrusions. Rainwater pipes are installed inside the protrusions of the metal roofing panels to avoid being laid on the outside, thus achieving an aesthetically pleasing effect.

[0009] The automatic water valve is installed at the center of the roof and is connected to the rainwater pipe. The rainwater pipe is arranged inside the grooves of the metal roof panel, starting from the eaves and continuously extending to the center of the roof, where it connects to the automatic water valve. During rainfall, the automatic water valve fills the rainwater pipe with water, creating a siphon effect to achieve drainage.

[0010] Specifically, a siphon rainwater hopper is installed near the eaves of the metal roof panel, and the siphon rainwater hopper is located in the center of the groove of the profiled steel sheet; a shunting cover is provided on the top of the rainwater hopper, and the bottom of the rainwater hopper is connected to the rainwater pipe; the shunting cover and the rainwater hopper are connected by bolts.

[0011] The difference between a siphon rainwater hopper and a regular rainwater hopper is that when rainwater near the drain inlet floods the siphon rainwater hopper, the shroud at the top of the siphon rainwater hopper prevents air from flowing into the hopper with the rainwater, thus preventing air from entering the hopper and the rainwater pipes. An automatic water valve fills the rainwater pipes installed on the roof with water during rainfall, working in conjunction with the siphon rainwater hopper to ensure that the rainwater pipes contain only water and no air, forming a seal and creating a siphon effect to achieve the purpose of drainage.

[0012] Furthermore, the waterproof layer is laid between the insulation layer and the metal roof panel, and can be filled with glass wool.

[0013] The aforementioned metal roof siphon internal drainage system also has the following technical features:

[0014] The size of the I-beams for the roof is selected according to structural needs, as long as it meets the building's usage requirements; there are no special requirements.

[0015] Both the metal roof panels and the outer retaining walls of the L-shaped roof are made of aluminum sheets;

[0016] The bottom panel of the L-shaped outer retaining wall is processed to be concave-convex, and is made to be completely consistent with the concave-convex shape of the metal roof panel, so as to facilitate the connection into a whole.

[0017] Both T-shaped supports and I-shaped supports are made of galvanized steel plates with a thickness of not less than 3.0mm.

[0018] The thickness of the waterproof layer laid on the metal roof panel and the outer retaining wall of the L-shaped roof shall not be less than 60mm; the thickness of the waterproof layer around the screw holes may be increased as appropriate.

[0019] The insulation layer under the metal roof panel should be at least 100mm thick to achieve a better insulation effect.

[0020] Both the siphon rainwater hopper and the rainwater pipe are made of stainless steel.

[0021] The manufacturing method for the siphonic internal drainage system for metal roofs provided by the present invention is implemented in sequence according to the following steps:

[0022] A suspended ceiling is installed on the I-beams of the roof, and the suspended ceiling is connected to the metal roof I-beams with screws;

[0023] The T-shaped bracket is installed on the upper part of the ceiling, and the T-shaped bracket is connected to the ceiling with screws;

[0024] Metal roof panels are laid along the ceiling. The two layers of metal roof panels are connected by overlapping and narrowing at the T-shaped support lock head. Waterproof tape is pasted at the overlap, and a waterproof layer and an insulation layer are installed in sequence under the metal roof.

[0025] The I-beam supports are installed on the upper outermost part of the suspended ceiling, and are connected to the ceiling with screws. The L-shaped roof retaining wall is connected to the I-beam supports with screws, and the bottom of the L-shaped roof retaining wall is pressed under the metal roof panel. At the joint where it overlaps with the metal roof panel, it is connected together with waterproof tape to form a whole. The bottom part and the vertical corner parts of the L-shaped roof retaining wall must be covered with a waterproof layer and waterproof tape to prevent water leakage. Additional waterproofing measures should be taken around the screw holes.

[0026] The siphon rainwater hopper is installed in the groove at the overlap of the metal roof panel and the L-shaped outer retaining wall. The siphon rainwater hopper is connected to the rainwater pipe, which is laid along the metal roof panel towards the center and under the convex panel of the metal roof panel.

[0027] The automatic water valve is installed in the center of the roof and connected to the rainwater pipe. When it rains, the automatic water valve fills the rainwater pipe with water, creating a siphon effect to achieve drainage.

[0028] The beneficial effects of this invention are:

[0029] (1) The present invention is easy to install, and integrates the roof and drainage system into one unit; it can be installed on-site by workers, which is convenient to construct, and the quality is good, the safety factor is high, and the appearance is simple; it solves the problems and shortcomings of unorganized drainage and organized outdoor drainage.

[0030] (2) It effectively solved safety problems such as water dripping from the eaves, icicles falling in winter, and large-scale snowfall;

[0031] (3) It greatly avoids the exposure of rainwater pipes, realizes internal drainage, and ensures the aesthetics of the metal roof. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the circular roof structure of the present invention;

[0033] Figure 2 yes Figure 1 Top view;

[0034] Figure 3 This is a schematic diagram of the rainwater pipe arrangement of the present invention (for...). Figure 1 (Enlarged view of a section taken radially).

[0035] Figure 4 yes Figure 3 Side view;

[0036] Figure 5 yes Figure 4 A 3D diagram of the layout of the rainwater pipes;

[0037] Figure 6 This is a schematic diagram of the siphon rainwater bucket of the present invention.

[0038] In the diagram: 1 is a metal roof panel, 2 is a retaining wall, 3 is a rainwater pipe, 4 is a siphon rainwater hopper, 5 is an automatic water valve, 6 is a manifold, 7 is a groove, 8 is a protrusion, 9 is a rainwater hopper body, 10 is a fairing, 11 is a T-shaped support, 12 is a thermal insulation layer, 13 is a waterproof strip, and 14 is a bolt. Detailed Implementation

[0039] The present invention will be further illustrated by the following embodiments, but is not limited to the following embodiments.

[0040] Example 1:

[0041] This embodiment uses a circular roof as an example for illustration.

[0042] like Figures 1-6 As shown, a metal roof siphon internal drainage system includes a metal roof panel 1, T-shaped supports 11, a suspended ceiling, a roof I-beam, and an insulation layer 12. The suspended ceiling is fastened to the roof I-beam with screws. The T-shaped supports are installed on the suspended ceiling, and the T-shaped supports and the suspended ceiling in contact with each other are fastened together with screws. Each layer of metal roof panel is laid on the T-shaped supports and connected by fastening to the lock heads of the T-shaped supports. The insulation layer fills the gaps between the metal roof panels and the suspended ceiling. The system also includes an outer perimeter wall 2; a waterproof layer; waterproof strips 13; rainwater pipes 3; siphon rainwater hoppers 4; automatic water valves 5; and I-beam supports.

[0043] The I-beam supports are fastened to the ceiling with screws. The outermost retaining wall 2 of the roof is L-shaped, surrounding the roof near the eaves. The retaining wall 2 is fastened to the I-beam supports with screws and presses against the bottom of the metal roof panel 1. At the joint where it overlaps with the metal roof panel 1, it is connected to the metal roof panel 1 with waterproof sealing strips to form a whole. Furthermore, the bottom part and the vertical part of the corner of the L-shaped retaining wall 2 need to be covered with a waterproof layer and waterproof sealing strips to prevent water leakage. Additional waterproofing measures should be taken around the screw holes.

[0044] The metal roof panel 1 consists of continuous grooves 7 and protrusions 8. The rainwater pipe 3 is arranged below the protrusions of the metal roof panel 1 to avoid being laid on the outside of the metal roof panel, achieving an aesthetically pleasing effect.

[0045] like Figure 3 As shown in the figure, the left side of the siphon rainwater hopper 4 and rainwater pipe 3 is... Figure 1 The outer edge of the circular roof, that is, the circumference of the entire circle. Figure 3 The positions corresponding to the automatic water valve 5, manifold 6, and rainwater pipe on the right side are... Figure 2 At the center of the circular roof, this component is located below the center of the roof. Figure 2 The center of the circular roof is where this component is located. From Figure 3 The diagram shows the positional relationship between this component and the roof. The automatic water valve 5 is connected to the rainwater pipe, and is installed at the center of the metal roof panel 1. The rainwater pipe 3 is located below the groove 8 of the metal roof panel 1. The rainwater pipe starts from the eaves and continues continuously to the center of the roof, where it connects to the automatic water valve 5. During rainfall, the automatic water valve fills the rainwater pipe with water, creating a siphon effect to achieve drainage.

[0046] Specifically, a siphonic rainwater hopper 4 is installed near the eaves of the metal roof panel 1, and the siphonic rainwater hopper 4 is located in the center of the profiled steel plate groove 7; a shunting cover 10 is provided on the top of the rainwater hopper body 9, and the bottom of the rainwater hopper body 9 is connected to the rainwater pipe 3; the shunting cover 10 and the rainwater hopper body 9 are connected by bolts 14. Figure 4 and 6 As shown.

[0047] The difference between a siphon rainwater hopper and a regular rainwater hopper is that when rainwater near the drain inlet floods the siphon rainwater hopper, the shroud at the top of the siphon rainwater hopper prevents air from flowing into the hopper with the rainwater, thus preventing air from entering the hopper and the rainwater pipes. An automatic water valve fills the rainwater pipes installed on the roof with water during rainfall, working in conjunction with the siphon rainwater hopper to ensure that the rainwater pipes contain only water and no air, forming a seal and creating a siphon effect to achieve the purpose of drainage.

[0048] Furthermore, the waterproof layer is laid between the insulation layer and the metal roof panel, and can be filled with glass wool.

[0049] The aforementioned metal roof siphon internal drainage system also has the following technical features:

[0050] The size of the I-beams for the roof is selected according to structural needs, as long as it meets the building's usage requirements; there are no special requirements.

[0051] Both the metal roof panel 1 and the L-shaped roof perimeter retaining wall 2 are made of aluminum plates;

[0052] The bottom panel of the L-shaped outer retaining wall 2 is processed to be called concave-convex, and is completely consistent with the concave-convex of the metal roof panel, so as to facilitate the connection into a whole.

[0053] Both T-shaped supports and I-shaped supports are made of galvanized steel plates with a thickness of not less than 3.0mm.

[0054] The thickness of the waterproof layer laid on the metal roof panel and the outer retaining wall of the L-shaped roof shall not be less than 60mm; the thickness of the waterproof layer around the screw holes may be increased as appropriate.

[0055] The insulation layer under the metal roof panel should be at least 100mm thick to achieve a better insulation effect.

[0056] Both the siphon rainwater hopper 4 and the rainwater pipe 3 are made of stainless steel.

[0057] The manufacturing method for the siphonic internal drainage system for metal roofs provided by the present invention is implemented in sequence according to the following steps:

[0058] A suspended ceiling is installed on the I-beams of the roof, and the suspended ceiling is connected to the metal roof I-beams with screws;

[0059] The T-shaped bracket is installed on the upper part of the ceiling, and the T-shaped bracket is connected to the ceiling with screws;

[0060] Metal roof panels are laid along the ceiling. The two layers of metal roof panels are connected by overlapping and narrowing at the T-shaped support lock head. Waterproof tape is pasted at the overlap, and a waterproof layer and an insulation layer are installed in sequence under the metal roof.

[0061] The I-beam supports are installed on the upper outermost part of the suspended ceiling, and are connected to the ceiling with screws. The outer retaining wall of the L-shaped roof is connected to the I-beam supports with screws, and the bottom of the outer retaining wall of the L-shaped roof is pressed under the metal roof panel. At the joint where it overlaps with the metal roof panel, it is connected together with waterproof tape to form a whole. The bottom part and the vertical part of the corner of the outer retaining wall of the L-shaped roof must be covered with a waterproof layer and waterproof tape to prevent water leakage. Additional waterproofing measures should be taken around the screw holes.

[0062] The siphon rainwater hopper is installed in the groove at the overlap of the metal roof panel and the L-shaped outer retaining wall. The siphon rainwater hopper is connected to the rainwater pipe, which is laid along the metal roof panel towards the center and under the convex panel of the metal roof panel.

[0063] The automatic water valve is installed in the center of the roof and connected to the rainwater pipe. When it rains, the automatic water valve fills the rainwater pipe with water, creating a siphon effect to achieve drainage.

Claims

1. A metal roof siphonic internal drainage system, comprising metal roof panels, T-shaped supports, a suspended ceiling, roof I-beams, and an insulation layer; the suspended ceiling is fastened to the roof I-beams with screws; the T-shaped supports are installed on the suspended ceiling, and the T-shaped supports and the suspended ceiling in contact with them are fastened together with screws; each layer of metal roof panels is laid on the T-shaped supports and connected by fastening to the locking heads of the T-shaped supports; the insulation layer fills the gaps between the metal roof panels and the suspended ceiling; characterized in that… It also includes the roof perimeter retaining wall, waterproof layer, waterproof strips, rainwater pipes, siphon rainwater hoppers, automatic water valves, and I-beam supports; The I-beam supports are fastened to the ceiling with screws. The outer perimeter retaining wall of the roof is L-shaped and surrounds the outermost part of the roof near the eaves. The retaining wall is fastened to the I-beam supports with screws and is pressed under the metal roof panel. The joints where the retaining wall overlaps with the metal roof panel are connected together with waterproof strips to form a whole. Siphon rainwater hoppers are installed near the eaves of the metal roof panel. The metal roof panel consists of continuous grooves and protrusions, with rainwater pipes arranged inside the protrusions of the metal roof panel. A shunting cover is installed on top of the rainwater hopper, and the bottom of the hopper is connected to the rainwater pipe. The shunting cover and the rainwater hopper are connected by bolts. A siphon rainwater hopper is installed in the groove at the overlap between the metal roof panel and the L-shaped outer retaining wall. The siphon rainwater hopper is connected to the rainwater pipe, which is laid along the metal roof panel from the eaves towards the center, under the convex panel, and continuously to the center of the roof, where it connects to an automatic water valve. The automatic water valve is installed at the center of the roof and connected to the rainwater pipe. During rainfall, the automatic water valve fills the rainwater pipe with water, creating a siphon effect to achieve drainage.

2. The metal roof siphon internal drainage system according to claim 1, characterized in that: The bottom part and the vertical part of the L-shaped retaining wall should be covered with a waterproof layer and waterproof strips to prevent water leakage. Additional waterproofing measures should be taken around the screw holes.

3. The metal roof siphon internal drainage system according to claim 1, characterized in that: The waterproof layer is laid between the insulation layer and the metal roof panel and filled with glass wool.

4. The metal roof siphon internal drainage system according to claim 1, characterized in that: Both the metal roof panel and the L-shaped roof perimeter wall are made of aluminum. The bottom panel of the L-shaped perimeter wall is processed to be concave-convex, and is completely consistent with the concave-convex shape of the metal roof panel, so as to facilitate connection into a whole. The siphon rainwater hopper and rainwater pipe are made of stainless steel.

5. The metal roof siphon internal drainage system according to claim 1, characterized in that: Both T-shaped and I-shaped supports are made of galvanized steel plates with a thickness of not less than 3.0mm. The thickness of the waterproof layer laid on the metal roof panel and the outer retaining wall of the L-shaped roof shall not be less than 60mm; the thickness of the waterproof layer shall be increased around the screw holes. The insulation layer under the metal roof panel should be at least 100mm thick to achieve good insulation performance.

6. A method for manufacturing a metal roof siphon internal drainage system according to any one of claims 1 to 5, characterized in that... Follow these steps in sequence: (1) A suspended ceiling is laid on the I-beam of the roof, and the suspended ceiling is connected to the metal roof I-beam by screws; (2) The T-shaped support is installed on the upper part of the ceiling, and the T-shaped support is connected to the ceiling by screws; (3) The metal roof panels are laid along the ceiling. The two layers of metal roof panels are connected by overlapping and shrinking at the T-shaped support lock head. Waterproof adhesive strips are pasted at the overlap, and a waterproof layer and a thermal insulation layer are set under the metal roof in sequence. (4) The I-shaped support is installed on the upper outermost part of the ceiling. The I-shaped support is connected to the ceiling with screws. The L-shaped roof perimeter wall is connected to the I-shaped support with screws. The bottom of the L-shaped roof perimeter wall is pressed under the metal roof panel. The overlapping joint with the metal roof panel is connected together with waterproof strips to form a whole. The bottom part and the vertical part of the corner of the L-shaped roof perimeter wall must be covered with waterproof layer and waterproof strips to prevent water leakage. Additional waterproof measures should be taken around the screw holes. (5) The siphon rainwater hopper is installed in the groove at the overlap of the metal roof panel and the L-shaped outer retaining wall. The siphon rainwater hopper is connected to the rainwater pipe. The rainwater pipe is laid along the metal roof panel towards the center and is laid under the convex panel of the metal roof panel. (6) The automatic water valve is installed at the center of the roof and connected to the rainwater pipe. When it rains, the automatic water valve will fill the rainwater pipe with water to form a siphon effect and achieve the drainage effect.

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