CN118815093A - A standing seam metal roofing system with sound absorption performance - Google Patents

Abstract

The application relates to the technical field of roof system construction, and provides an upright serging metal roof system with sound absorption performance, which comprises a foundation support structure and a roof layer structure arranged above the foundation support structure, wherein the foundation support structure sequentially comprises a truss structure tie bar, a purlin support, a main purlin and a secondary purlin which are mutually connected from top to bottom; the roof layer structure comprises a contour plate, a sound absorbing layer, a heat insulating plate and an upright serging roof plate, wherein the contour plate is connected with the secondary purline, the sound absorbing layer is arranged between the heat insulating plate and the contour plate, and the upright serging roof plate is arranged above the heat insulating plate. The application can meet the noise reduction requirement of the metal roof.

Description

A standing seam metal roofing system with sound absorption performance

Technical Field

The present application relates to the technical field of roof system construction, and in particular to a standing seam metal roof system with sound absorption performance.

Background Art

The standing seam metal roof system is a high-quality, long-lasting roofing solution widely used in commercial, industrial and residential buildings. The system is characterized by its unique connection method, which is to fold and lock the edges of the metal panels together to form a vertical seam, thus providing a seamless, waterproof roof surface. The core of the system is composed of special metal panels with a vertical seam design, which are connected to each other in a non-perforated way to form an integral structural waterproof and drainage function.

As an important roofing system, metal roofing is increasingly being promoted and applied in my country, and its construction methods are becoming more and more important. When rain falls on the metal roof, due to the hard characteristics of the metal material, it will produce a noticeable knocking sound. However, the traditional metal roofing system does not take into account the requirements of the indoor acoustic environment. For buildings with acoustic requirements, the traditional metal roofing system cannot meet the use needs.

Summary of the invention

In order to meet the noise reduction requirements of metal roofs, the present application provides a standing seam metal roof system with sound absorption performance.

The present application provides a standing seam metal roofing system with sound absorption performance, which adopts the following technical solution:

A standing seam metal roof system with sound absorption performance comprises a basic support structure and a roofing layer structure arranged above the basic support structure, wherein the basic support structure comprises, from top to bottom, interconnected truss structure tie rods, purlin brackets, main purlins and secondary purlins;

The roofing layer structure includes a corrugated board, a sound absorbing layer, an insulation board and a standing seam roof panel, the corrugated board is connected to the secondary purlin, the sound absorbing layer is arranged between the insulation board and the corrugated board, and the standing seam roof panel is arranged above the insulation board.

By adopting the above technical solutions, the setting of the basic support structure realizes the stable support of the roof and ensures the safety and stability of the building; by adding a sound-absorbing layer, the noise generated by raindrops hitting the roof is effectively reduced, and the indoor acoustic environment is optimized; and the setting of the insulation board improves the thermal insulation performance of the roof.

Optionally, a transition piece is further provided in the roof layer structure, one end of the transition piece is connected to the secondary purlin, and the other end is connected to a fastening support;

The side ends of the standing seam roof panel are provided with a first hooking portion and a second hooking portion, and the first hooking portion and the second hooking portion in one of the standing seam roof panels are arranged opposite to each other;

One end of the fastening support passes through the insulation board, and upright lock-edge roof panels are arranged on both sides of the fastening support, and the end of the fastening support passing through the insulation board is sequentially sleeved with a second hooking part and a first hooking part from inside to outside.

By adopting the above technical solution, the adapter and the fastening support, the vertical lock seam roof panel is ensured to be stably installed, and the connection between adjacent vertical lock seam roof panels is realized by connecting the first hook part and the second hook part at one end of the fastening support, thereby enhancing the stability of the system. Moreover, the first hook part, the second hook part and the fastening support are used for connection without gaps, thereby improving the waterproof performance of the roof surface.

Optionally, the corrugated plate is wavy, and the trough of the corrugated plate is fixedly connected to the secondary purlin.

By adopting the above technical solution, the corrugated corrugated board design improves the stability of the structure, allowing the roof system to withstand greater external forces.

Optionally, the purlin support includes a support plate fixed to a plurality of vertical columns below the support plate, and one end of the vertical column is fixedly connected to the truss structure tie rod.

By adopting the above technical solution and through the structural design of the purlin support, the connection between the truss structure tie rods and the secondary purlins is strengthened, and the strength and reliability of the basic supporting structure are improved.

Optionally, a first waterproof layer and a second waterproof layer are provided between the thermal insulation board and the standing seam roof panel.

By adopting the above technical solution and providing the first waterproof layer and the second waterproof layer, the waterproof effect of the roofing system is enhanced, and the problem of water leakage in metal roofing projects can be effectively solved.

Optionally, a heat insulating pad is provided between the fastening support and the adapter.

By adopting the above technical solution, the use of the thermal insulation pad reduces the heat conduction between the fastening support and the adapter, thereby improving the thermal insulation effect of the roof.

Optionally, a vapor barrier membrane is provided between the profiled plate and the sound absorbing layer.

By adopting the above technical solution, the provision of the vapor barrier membrane prevents moisture accumulation inside the roof layer structure, avoids moisture loss of the thermal insulation material, and maintains the thermal insulation performance of the roof.

Optionally, a drainage structure is further provided above the roof layer structure, and the drainage structure includes a water collecting plate and a water collecting cylinder, the water collecting cylinder is penetrated through the water collecting plate, and sound insulation pads are provided on the surface of the water collecting plate and the inner wall of the water collecting cylinder;

The cross section of the water collecting tube gradually decreases towards the direction close to the roof layer structure. A flow guide pipe is provided on the inner wall of the water collecting tube, and the flow guide pipe passes through the sound insulation pad. One end of the flow guide pipe is connected to a drainage pipe.

By adopting the above technical solution, when it rains, rainwater falls on the water collecting plate and water collecting cylinder, and most of the rainwater flows along the guide pipe to the drain pipe for discharge, which realizes the effective collection and guidance of rainwater on the roof, and reduces the impact sound of rainwater on the vertical lock-edge roof panel; and after the rainwater falls on the roof, it first contacts the sound insulation pad, and the sound insulation pad buffers the rainwater, further reducing the noise. In addition, the setting of the water collecting cylinder ensures the normal ventilation of the surface of the vertical lock-edge roof panel, reduces the accumulation of moisture on the surface of the vertical lock-edge roof panel, and makes the vertical lock-edge roof panel less susceptible to corrosion. The gradual contraction of the water collecting cylinder makes the flow rate faster when the external airflow blows along the water collecting cylinder to the vertical lock-edge roof panel, which can improve the ventilation efficiency of the surface of the vertical lock-edge roof panel.

Optionally, an opening and closing cover for opening or closing the opening below the water collecting cylinder is slidably provided in the water collecting cylinder, and a containing groove is provided on the side of the opening and closing cover away from the roof layer structure;

A reset member is connected between the bottom of the opening and closing cover and the inner wall of the water collecting cylinder, and the reset member is used to drive the opening and closing cover to slide in a direction away from the roof layer structure.

By adopting the above technical solution, when rainwater flows into the storage tank along the opening and closing cover and accumulates to a certain amount, the opening and closing cover moves downward under the gravity of the rainwater to close the opening below the water collection cylinder, further preventing rainwater from directly contacting the vertical lock seam roof panel. After the opening below the water collection cylinder is closed, the rainwater is discharged to the drain pipe through the guide pipe; after the water in the storage tank dries up, the reset member drives the opening and closing cover to return to the initial position to open the opening below the water collection cylinder, so that air can smoothly flow along the water collection cylinder to the surface of the vertical lock seam roof panel.

Optionally, the cross-section of the opening and closing cover tapers toward a direction away from the roofing layer structure, and the containing groove is circumferentially arranged along the bottom edge of the opening and closing cover.

By adopting the above technical solution, the combination of the tapered opening and closing cover and the containing trough can more effectively collect and guide rainwater, so that the containing trough is filled with rainwater as soon as possible, and the opening under the water collecting cylinder is closed in time, further reducing the amount of water falling on the surface of the upright lock-edge roof panel.

In summary, the present application includes at least one of the following beneficial effects:

1. A sound-absorbing layer is provided between the insulation board and the profiled board of the present application, and a vertical lock-edge metal roof system with sound-absorbing performance is constructed, thereby effectively reducing noise and improving the comfort of the indoor acoustic environment. 2. A first waterproof layer and a second waterproof layer are provided between the insulation board and the vertical lock-edge roof panel of the present application, which not only enhances the insulation effect, but also effectively solves the problem of water leakage in the metal roofing project and improves the overall waterproof performance of the roofing system.

3. A drainage structure is also provided above the roof layer structure of the present application. In rainy weather, rainwater falls on the water collecting plate and the water collecting cylinder, and most of the rainwater flows along the guide pipe to the drainage pipe for discharge, thereby realizing the effective collection and guidance of roof rainwater and reducing the impact sound of rainwater on the vertical lock-edge roof panel;

4. In the present application, the water collecting tube is provided to ensure normal ventilation of the surface of the standing seam roof panel, reduce moisture accumulation on the surface of the standing seam roof panel, and make the standing seam roof panel less susceptible to corrosion; and the water collecting tube is gradually set, and the flow rate of the external airflow becomes faster during the process of blowing along the water collecting tube to the standing seam roof panel, which can improve the ventilation efficiency of the surface of the standing seam roof panel.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a standing seam metal roofing system with sound absorption performance according to Example 1 of the present application;

FIG2 is a schematic diagram of a partial structure of a standing seam metal roofing system with sound absorption performance according to Example 1 of the present application;

FIG3 is a schematic diagram of a partial enlarged structure of point A in FIG2;

FIG4 is a schematic diagram of the partial structure of a standing seam metal roofing system with sound absorption performance according to Example 3 of the present application;

FIG5 is a schematic diagram of a partially enlarged structure of a drainage structure of Example 3 of the present application;

Explanation of the reference numerals in the accompanying drawings: 1. Basic supporting structure; 11. Truss structure tie rod; 12. Purlin support; 121. Support plate; 122. Vertical column; 13. Main purlin; 14. Secondary purlin; 2. Roof layer structure; 21. Corrugated board; 22. Sound-absorbing layer; 23. Insulation board; 24. Standing lock-edge roof panel; 241. First hook; 242. Second hook; 25. First waterproof layer; 26. Second waterproof layer; 27. Vapor barrier; 3. Adapter; 4. Fastening support; 41. Horizontal plate; 42. Vertical plate; 5. Insulation pad; 6. Drainage structure; 61. Water collecting plate; 62. Water collecting tube; 63. Guide pipe; 64. Drain pipe; 65. Opening and closing cover; 651. Container; 66. Resetting member; 7. Sound insulation pad; 8. Connecting column.

DETAILED DESCRIPTION

The present application is further described in detail below in conjunction with Figures 1-5.

The present application is further described below with reference to the accompanying drawings:

Embodiment 1:

1 , the present embodiment discloses a vertical lock-edge metal roof system with sound absorption performance, including a basic support structure 1 and a roofing layer structure 2. The basic support structure 1 includes a steel truss structure tie rod 11, a purlin support 12 and a main purlin 13 fixed on the truss structure tie rod 11 in sequence, and a secondary purlin 14 fixed on the main purlin 13. A plurality of purlin supports 12 are arranged at intervals along the length direction of the truss structure tie rod 11, and the main purlin 13 is arranged one by one on the purlin support 12. The purlin support 12 includes a support plate 121 and a plurality of vertical columns 122 fixed below the support plate 121. In the present embodiment, the vertical column 122 is specifically configured as a circular tube, and two rows of vertical columns 122 are arranged below one support plate 121. The column purlin is specifically configured as a rectangular tube.

2 , the roofing structure 2 includes, from bottom to top, a corrugated plate 21, a vapor barrier membrane 27, a sound absorbing layer 22, an insulation board 23, a first waterproof layer 25, a second waterproof layer 26, and a standing seam roofing board 24. The corrugated plate 21 is arranged in a wave shape, and the trough of the corrugated plate 21 is fixedly connected to the secondary purlin 14 by an external hexagonal self-tapping screw. A plurality of standing seam roofing boards 24 are arranged in an array on the second waterproof layer 26 to cover the second waterproof layer 26. In this embodiment, the corrugated plate 21 is specifically arranged as a perforated galvanized corrugated steel plate, the insulation board 23 is made of a composite veneer foam glass insulation board 23, the first waterproof layer 25 is made of a 3 mm thick SBS modified asphalt waterproofing membrane, the second waterproof layer 26 is made of a 4 mm thick SBS modified asphalt waterproofing membrane, and the standing seam roofing board 24 is made of an aluminum-magnesium-manganese alloy.

The perforated galvanized corrugated steel sheet not only has excellent structural strength, but also the perforated design on it helps to enhance the sound absorption effect. The sound absorption layer 22 is arranged between the corrugated plate 21 and the insulation plate 23, which effectively absorbs and reduces the noise transmission. The composite veneer foam glass insulation plate 23 is selected, which not only has good thermal insulation performance, but also provides a solid foundation cushion for the waterproof layer. The setting of two layers of SBS modified asphalt waterproof membrane enhances the waterproof effect of the roof system and effectively prevents the occurrence of water leakage.

Referring to Fig. 3, an adapter 3 and a fastening support 4 are also provided in the basic support structure 1. The adapter 3 is inserted into the attraction layer, and one end of the adapter 3 abuts against the secondary purlin 14; the fastening support 4 is provided above the adapter 3, and the fastening support 4 includes a horizontal plate 41 and a vertical plate 42 connected above the horizontal plate 41; a heat insulation pad 5 is provided between the horizontal plate 41 and the adapter 3, and the horizontal plate 41 of the fastening support 4 is clamped in the heat insulation pad 5, and is fixedly connected to the heat insulation pad 5 and the adapter 3 by hexagonal self-tapping screws. The use of the heat insulation pad 5 reduces the heat conduction between the fastening support 4 and the adapter 3, improves the thermal insulation effect of the roof, and effectively controls the cold bridge effect.

Referring to Fig. 3, the side end of the standing seam roof panel 24 is integrally formed with a first hook portion 241 and a second hook portion 242, and the first hook portion 241 and the second hook portion 242 in one standing seam roof panel 24 are arranged opposite to each other. One end of the fastening support 4 passes through the insulation board 23 and is located between two standing seam roof panels 24; and the placement direction of each standing seam roof panel 24 is the same, so that the first hook portion 241 of one standing seam roof panel 24 is close to the second hook portion 242 of the adjacent standing seam roof panel 24. In two adjacent standing seam roof panels 24, the first hook portion 241 of one standing seam roof panel 24 is sleeved on one end of the horizontal board 41 passing through the insulation board 23, and the first hook portion 241 of the other standing seam roof panel 24 is sleeved on the second hook portion 242 outside the horizontal board 41, so as to achieve the purpose of locking the edge and ensure the tightness and waterproof performance of the roof.

In this embodiment, a plurality of fastening supports 4 are arranged at intervals along the length direction of the secondary purlin 14, and the adapters 3 are arranged one-to-one corresponding to the secondary purlin 14. The fastening supports 4 are made of aluminum alloy.

The implementation principle of Example 1 is: by optimizing and combining a variety of materials, including a corrugated board 21 with a perforated design, a sound-absorbing layer 22, an insulation board 23, and double waterproof performance achieved by a first waterproof layer 25 and a second waterproof layer 26; not only the noise pollution is significantly reduced, but also the waterproof and thermal insulation functions are enhanced, thereby greatly improving the comfort of use of the building.

Embodiment 2:

Embodiment Based on a standing seam metal roofing system with sound absorption performance in Embodiment 1, a construction method of the standing seam metal roofing system with sound absorption performance is disclosed.

This embodiment takes a sports stadium project as an example, the roof span is 231m×129m, the slope is two-way, the slope is 8%, and the roof structure adopts a steel truss structure. The vertical column 122 in the purlin support 12 adopts a Φ100×8mm round steel tube, the horizontal plate 41 adopts a 150×150×10mm steel plate, the main purlin 13 adopts a 100×80×4mm rectangular steel tube, the secondary purlin 14 adopts a 80×50×4mm rectangular steel tube, the corrugated plate 21 is a 1mm thick steel plate, the vapor barrier membrane 27 is 0.25mm thick, the sound-absorbing layer 22 adopts 80mm thick and 48kg/m³ sound-absorbing cotton, the adapter 3 adopts a 3mm thick hot-dip galvanized steel plate, the fastening support 4 has a height of 195mm and a thickness of 3mm, the insulation board 23 adopts a composite veneer foam glass insulation board 23 with a thickness of 120mm and a bulk density of 120kg/m³, and the upright lock-edge roof panel 24 adopts an aluminum-magnesium-manganese alloy with a thickness of 0.9mm and a model of N65/400.

The construction steps include:

S1. Measurement and layout: Before the roof construction, the elevation and plane position of the roof steel truss structure shall be re-measured. After the re-measurement is completed, the partition control line of the roof shall be measured according to the design drawings. When measuring and setting the partition control line, the total station shall be first set up on the control network point, and the position of each partition control line shall be measured in turn. Then the total station shall be set up on the extension line of each partition control line in turn, and the encrypted points on the partition control line shall be measured and laid out. Connecting each point is the partition control line.

S2. Installation of purlin brackets: According to the measurement results and in combination with the elevation of the finished building surface in the design drawings, the height of the purlin brackets 12 on each steel truss structure tie rod 11 is calculated in the model drawing, and the purlin brackets 12 are cut, processed and manufactured according to the calculated heights. The purlin brackets 12 are numbered according to the model drawing to determine their exact positions.

During installation, firstly, the highest and lowest purlin brackets 12 of the roof steel truss structure tie rod 11 are firmly fixed according to the designed elevation and position, a normal steel wire is pulled between the two purlin brackets 12 as a plane control line, and then the manufactured purlin brackets 12 are installed on the steel truss structure tie rod 11 in sequence according to the numbering sequence, and the purlin brackets 12 and the steel truss structure tie rod 11 are fixed by welding.

S3. Install the main purlins: Determine the installation direction of the main purlins 13 according to the design drawings, place the processed main purlins 13 on the purlin brackets 12 in the determined direction, and weld the main purlins 13 and the purlin brackets 12 together, with the weld length not less than 150mm. Butt welds are used between two adjacent main purlins 13 on the same straight line. Before welding, a gap of 2 to 3mm is reserved between the two main purlins 13 to ensure the welding quality of the weld.

Considering the influence of temperature and other factors, when installing the main purlin 13, a 20mm wide expansion joint is set every 27m, and the expansion joint is set on the purlin bracket 12. When there is a height deviation between the main purlin 13 and the purlin bracket 12, it can be adjusted by using L70×6mm angle code. During installation, one side of the angle code is welded to the purlin bracket 12, and the other side is welded to the main purlin 13.

S4. Install secondary purlins: The secondary purlins 14 are arranged vertically with the main purlins 13, and the distance between adjacent secondary purlins 14 is ≤1200mm. The secondary purlins 14 are welded to the main purlins 13, and the weld length is not less than 100mm. Butt welds are used between two secondary purlins 14 located on the same main purlin 13. Before the construction of the two secondary purlins 14, a gap of 2 to 3mm needs to be reserved between the two secondary purlins 14 to ensure the welding quality of the weld.

Taking into account the influence of factors such as temperature, when installing the secondary purlin 14, a 20mm wide expansion joint is set every 24m. The expansion joint is set at the intersection with the main purlin 13, and L50×5mm angle codes are set on both sides of the main purlin 13 to fix the secondary purlin 14.

S5. Installation of perforated galvanized corrugated steel sheet: Install the corrugated sheet 21 on the secondary purlin 14 and arrange it vertically with the secondary purlin 14. Before installation, determine the edge line of the positioning plate, install the positioning plate, and then install the corrugated sheet 21 in sequence according to the positioning plate. The corrugated sheet 21 is fixed to the secondary purlin 14 with hexagonal self-tapping screws, with a nail spacing of 400mm, and the screws should be set at the trough of the corrugated sheet 21 to effectively fix the corrugated sheet 21 to the secondary purlin 14. When installing the corrugated sheet 21, the overlap length of the two corrugated sheets 21 shall not be less than 50mm, and the overlap should be high and low.

S6. Vapor barrier film installation: The vapor barrier film 27 can enhance the air tightness and water tightness of the building, slow down the speed of indoor moisture discharge to the insulation board 23, and prevent condensation. At the same time, the vapor barrier film 27 can effectively prevent the lint produced by the sound-absorbing cotton. During construction, the vapor barrier film 27 is laid flat on the profiled board 21, and the overlap of the left and right vapor barrier films 27 is not less than 100mm. The overlap is firmly bonded to the vapor barrier film 27 with special spray glue. When paving, it is required to be flat, close to the profiled board 21, without obvious wrinkles, and with tight seams.

S7. Laying of sound-absorbing layer: After the vapor barrier membrane 27 is laid, sound-absorbing cotton is laid on the vapor barrier membrane 27 to form a sound-absorbing layer 22. The joints between the vapor barrier membranes 27 should be tight, the inside of the adapter 3 may be fully filled, and the laying direction of the sound-absorbing cotton is perpendicular to the secondary purlin 14 of the roof.

S8. Fastening support installation: multiple fastening supports 4 are installed and arranged at intervals along the length direction of the secondary purlin 14. The distance between two adjacent fastening supports 4 is limited to 1200 mm. Combined with the size of the upright lock-edge roof panel 24, the longitudinal size of the fastening support 4 is determined to be 400 mm.

Since the corrugated plate 21 is wavy with crests and troughs, in order to ensure the installation height of the fastening support 4, before installing the fastening support 4, an adapter 3 is set on the corrugated plate 21 at the installation point of the fastening support 4. The adapter 3 is fixedly connected to the secondary purlin 14 with a hexagonal screw, and each adapter 3 has no less than 4 fixing points. After the adapter 3 is installed, the aluminum alloy high-strength support is fixedly installed on the adapter 3. Five thermal insulation pads are set at the bottom of the fastening support 4 to prevent the two materials from contacting to produce an electrochemical reaction and effectively control the cold bridge effect.

S9. Insulation board installation: lay the insulation board 23 flat on the sound absorbing layer 22. The insulation boards 23 should be tightly connected to each other and staggered during installation.

S10. Laying the first waterproof layer: The waterproof paving should be laid upward from the lowest elevation of the roof. The overlap of the short sides of two adjacent rolls should be staggered by no less than 500mm, and the overlap should be in the direction of the water flow. The overlap of the rolls is fully glued by hot melt, and the overlap width of the long side of the roll is 100mm, and the overlap width of the short side is 100mm. The bottom surface of the roll on the overlapped edge is fully baked by hot melt method at the joint. It must be ensured that the asphalt between the rolls at the overlap is densely fused, and molten asphalt is squeezed out from the edge to form a uniform asphalt strip.

S11. Laying the second waterproof layer: During laying, the gaps between the coils shall not overlap with the gaps between the coils in the first waterproof layer 25. The longitudinal seams of the second waterproof layer 26 shall be staggered by at least one third from the first waterproof layer 25, and the transverse seams shall be staggered by at least 1mm to avoid defects in the first waterproof layer 25. The overlap width of the coils is 100mm, and the hot melt method is used.

S12, roof panel installation: the standing seam roof panel 24 is installed from one end, and the first hook part 241 and the second hook part 242 of the standing seam roof panel 24 are respectively mounted on the two fastening supports 4. In order to prevent the standing seam roof panel 24 from sliding, a plurality of fixing points are set on the first hook part 241 and the second hook part 242, and then the second hook part 242 is fixed to the fastening support 4 with a rivet of 11-12 mm in length. The next standing seam roof panel 24 is installed by mounting its own first hook part 241 on the outside of the second hook part 242 of the previous standing seam roof panel 24. After the position of the standing seam roof panel 24 is adjusted, a special electric bite machine is used to perform bite edge processing.

Embodiment 3:

Referring to Figure 4, the difference between this embodiment and embodiment 1 is that a drainage structure 6 is added above the roof layer structure 2. The drainage structure 6 includes a water collecting plate 61 and a water collecting tube 62. A plurality of water collecting tubes 62 are passed through and fixedly connected to the water collecting plate 61, and are arranged at intervals on the water collecting plate 61 and distributed in an array. The upper surface of the water collecting plate 61 and the inner wall of the water collecting tube 62 are covered with a sound insulation pad 7. In this embodiment, the sound insulation pad 7 is made of rubber. The cross-section of the water collecting tube 62 gradually decreases toward the direction close to the roof layer structure 2. Each water collecting tube 62 is provided with a guide pipe 63. One end of the guide pipe 63 passes through the inner wall of the water collecting tube 62 and the sound insulation pad 7 in turn and then communicates with the water collecting tube 62.

Referring to FIG4 , a drain pipe 64 is provided between two adjacent water collecting tubes 62, and one end of the guide pipe 63 away from the water collecting tube 62 is connected to the drain pipe 64, and the drain pipe 64 is located below the connection between the guide pipe 63 and the water collecting tube 62. A connecting column (8) is fixed on the bottom wall of the water collecting plate 61, one end of the connecting column (8) is fixedly connected to the upright lock seam roof panel 24, and the drain pipe 64 is passed through the connecting column (8) and fixedly connected to the connecting column (8). In rainy weather, rainwater falls on the water collecting plate 61 and the water collecting tube 62, and most of the rainwater flows along the guide pipe 63 to the drain pipe 64 for discharge, thereby achieving effective collection and guidance of rainwater on the roof. After the rainwater falls on the roof, it first contacts the sound insulation pad 7, which buffers the rainwater and further reduces the noise.

Referring to Fig. 5, further, a cover 65 for opening or closing the opening below the water collecting barrel 62 is slidably provided. The cross section of the cover 65 gradually shrinks toward the direction close to the roofing structure 2. The edge of the bottom of the cover 65 extends outward and then bends upward, forming a storage groove 651 on the side away from the roofing structure 2 for temporarily storing rainwater. At the same time, a reset member 66, such as a spring, a rubber strip, etc., is connected between the bottom of the cover 65 and the inner side wall of the water collecting barrel 62. The reset member 66 can drive the cover 65 to slide in the direction away from the roofing structure 2.

When rainwater enters the water collecting barrel 62 and accumulates to a certain amount, the opening and closing cover 65 moves downward under the gravity of the rainwater, and the opening and closing cover 65 moves to the bottom of the opening and closing cover 65 and abuts against the lower edge of the connection between the guide pipe 63 and the water collecting barrel 62, so as to close the opening below the water collecting barrel 62, further preventing rainwater from directly contacting the upright lock-edge roof panel 24. After the opening below the water collecting barrel 62 is closed, the rainwater is discharged to the drain pipe 64 along the guide pipe 63; after the water in the containing tank 651 is dried, the reset member 66 drives the opening and closing cover 65 to return to the initial position to open the opening below the water collecting barrel 62, so that air can smoothly flow along the water collecting barrel 62 to the surface of the upright lock-edge roof panel 24, effectively reducing the noise of rainwater and ensuring the normal ventilation of the surface of the upright lock-edge roof panel 24.

The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application. For example, the materials of the sound-absorbing layer 22 and the insulation board 23 can be replaced according to actual needs, and the shape and connection method of the adapter 3 and the support can also be appropriately adjusted. As long as these changes do not deviate from the core ideas and principles of the present application, they should be considered to be included in the protection scope of the present application.

Claims (10)

1. A standing seam metal roof system with sound absorption performance, characterized in that it comprises a base support structure (1) and a roof layer structure (2) arranged above the base support structure (1), wherein the base support structure (1) comprises, from top to bottom, interconnected truss structure tie rods (11), purlin brackets (12), main purlins (13) and secondary purlins (14); The roofing layer structure (2) comprises a profiled plate (21), a sound absorbing layer (22), a thermal insulation board (23) and a standing seam roofing board (24); the profiled plate (21) is connected to the secondary purlin (14); the sound absorbing layer (22) is arranged between the thermal insulation board (23) and the profiled plate (21); and the standing seam roofing board (24) is arranged above the thermal insulation board (23). 2. A standing seam metal roofing system with sound absorption performance according to claim 1, characterized in that: an adapter (3) is further provided in the roofing layer structure (2), one end of the adapter (3) is connected to the secondary purlin (14), and the other end is connected to a fastening support (4); A first hook portion (241) and a second hook portion (242) are provided at the side end of the standing seam roof panel (24), and the first hook portion (241) and the second hook portion (242) in one of the standing seam roof panels (24) are arranged opposite to each other; One end of the fastening support (4) passes through the insulation board (23), and upright lock-edge roof panels (24) are arranged on both sides of the fastening support (4), and the end of the fastening support (4) passing through the insulation board (23) is sequentially sleeved with a second hook portion (242) and a first hook portion (241) from the inside to the outside. 3. A standing seam metal roofing system with sound absorption performance according to claim 1, characterized in that the corrugated plate (21) is wavy, and the trough of the corrugated plate (21) is fixedly connected to the secondary purlin (14). 4. A standing seam metal roofing system with sound absorption performance according to claim 3, characterized in that: the purlin support (12) includes a support plate (121) fixed to a plurality of vertical columns (122) below the support plate (121), and one end of the vertical column (122) is fixedly connected to the truss structure tie rod (11). 5. A standing seam metal roofing system with sound absorption performance according to claim 4, characterized in that a first waterproof layer (25) and a second waterproof layer (26) are provided between the insulation board (23) and the standing seam roofing panel (24). 6. A standing seam metal roofing system with sound absorption performance according to claim 2, characterized in that a heat insulation pad (5) is provided between the fastening support (4) and the adapter (3). 7. A standing seam metal roofing system with sound absorption performance according to claim 1, characterized in that a vapor barrier membrane (27) is provided between the profiled plate (21) and the sound absorption layer (22). 8. A standing seam metal roofing system with sound absorption performance according to claim 1, characterized in that: a drainage structure (6) is further arranged above the roofing layer structure (2), the drainage structure (6) comprises a water collecting plate (61) and a water collecting tube (62), the water collecting tube (62) is penetrated on the water collecting plate (61), and sound insulation pads (7) are arranged on the surface of the water collecting plate (61) and the inner wall of the water collecting tube (62); The cross section of the water collecting tube (62) tapers towards the direction approaching the roof layer structure (2); a flow guide pipe (63) is provided on the inner side wall of the water collecting tube (62), and the flow guide pipe (63) passes through the sound insulation pad (7); one end of the flow guide pipe (63) is connected to a drainage pipe (64). 9. A standing seam metal roofing system with sound absorption performance according to claim 8, characterized in that: an opening and closing cover (65) for opening or closing the opening below the water collecting cylinder (62) is slidably arranged in the water collecting cylinder (62), and a containing groove (651) is arranged on the side of the opening and closing cover (65) facing away from the roofing layer structure (2); A reset member (66) is connected between the bottom of the opening and closing cover (65) and the inner wall of the water collecting cylinder (62), and the reset member (66) is used to drive the opening and closing cover (65) to slide in a direction away from the roof layer structure (2). 10. A standing seam metal roofing system with sound absorption performance according to claim 9, characterized in that: the cross-section of the opening and closing cover (65) gradually decreases in the direction away from the roofing layer structure (2), and the containing groove (651) is circumferentially arranged along the bottom edge of the opening and closing cover (65).