A metal flexible roof waterproof exhaust device for building energy saving

Abstract

The application relates to the technical field of building houses, in particular to a metal flexible roof waterproof exhaust device for building energy saving, which comprises a building roof, a protection assembly arranged on the top of the building roof, and a collection assembly arranged on the outer side of the protection assembly. The metal flexible roof waterproof exhaust device has the beneficial effects that through the structural cooperation between the heat preservation layer plate and the arrayed exhaust holes in the protection assembly, the uniform collection and directional discharge of the water vapor in the heat preservation layer are realized, and the heat preservation performance attenuation caused by the local water vapor accumulation is avoided; in combination with the barrier plate in the elbow pipe and the cross-arranged turbulence strips on the surface of the barrier plate, the external rainwater can be effectively blocked from backflowing during the exhaust process, the steam-water separation efficiency is improved by utilizing the air flow disturbance, and the waterproof reliability is improved; meanwhile, the waterproof layer plate covers the top of the heat preservation layer plate, cooperates with the waterproof fence of the drainage inclined surface and the sealing glue, and builds a waterproof barrier, so that the air tightness and water tightness of the exhaust node are ensured, and the overall service life of the metal flexible roof is prolonged.

Description

Technical Field

[0001] This invention relates to the field of building technology, and in particular to a waterproof and ventilating device for flexible metal roofs used in building energy conservation. Background Technology

[0002] Flexible metal roofing is a lightweight and efficient building envelope system widely used in modern architecture. It primarily consists of profiled metal sheets (such as galvanized steel sheets or aluminum alloy sheets) as the surface layer, connected by interlocking, locking, or fasteners to form a continuous, deformable outer protective layer. Beneath this layer, a waterproof and breathable membrane, a thermal insulation layer, a vapor barrier, and a supporting structure are laid sequentially. Due to its lightweight, large span, convenient construction, and flexible design, this system is gradually becoming the mainstream choice for large industrial plants, logistics warehouses, and public buildings.

[0003] The building roof waterproofing and venting device disclosed in Chinese Patent Publication No. (CN204920032U) comprises the following components: a supporting frame, an auxiliary sealing plate, and a water vapor exhaust pipe. The supporting frame is located at the bottom of the entire roof waterproofing and venting device and is specifically a box structure with one open side and an internal cavity. The vent connector is a tubular structure fixed to the upper part of the supporting frame and connects to the inner cavity of the supporting frame. The water vapor exhaust pipe is connected to the supporting frame; the upper part of the water vapor exhaust pipe is a downward-opening elbow, and its inner cavity connects to the inner cavity of the supporting frame. Both the supporting frame and the externally fixed auxiliary sealing plate have channels connecting to the inner cavity of the supporting frame. This design is simple in structure, provides excellent water vapor venting, has a long service life, and possesses significant economic and social value.

[0004] To achieve effective ventilation in roof insulation panels, existing technologies typically employ a duct system extending from the insulation panel to create a ventilation channel. This allows moisture generated by the insulation panel to escape along the duct. To prevent rainwater ingress, the duct ends are usually designed with elbows to avoid direct rainwater entry. However, while this method prevents direct rainwater ingress, the elbow-designed vent pipe cannot effectively block water flow in environments with splashing rain, easily leading to secondary water ingress into the insulation panel. Furthermore, since most existing waterproof panels can only block rainwater and cannot collect some of it for reuse, additional tap water is required for watering some plants, resulting in resource waste. Summary of the Invention

[0005] In view of the problems existing in the above or prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a waterproof and venting device for flexible metal roofs used in building energy conservation, which can effectively waterproof and vent the flexible metal roof while purifying and collecting rainwater for secondary use.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a waterproof and venting device for flexible metal roofs used in building energy conservation, comprising a building roof, a protective component disposed on the top of the building roof, and a collection component disposed on the outside of the protective component; The protective component includes an insulation panel installed on the top of the building roof. The insulation panel has several sets of vent holes inside, and each set of vent holes has a collection pipe embedded inside. Each set of collection pipes is connected to a connecting pipe on its outer side. The top of each set of connecting pipes is threaded with a bend. Two sets of baffle plates are fixedly installed inside the bend. Several sets of deflectors are fixedly installed on the upper and lower sides of the two sets of baffle plates. A waterproof component is installed on the top of the insulation panel.

[0008] As a preferred embodiment of the building energy-saving metal flexible roof waterproof venting device of the present invention, wherein: a plurality of groups of vent holes are arranged in an array along the length direction of the insulation layer, and a plurality of groups of air inlets are opened on the outer side of the collection pipe.

[0009] As a preferred embodiment of the flexible metal roof waterproofing and venting device for building energy conservation described in this invention, the size of the collecting pipe is adapted to the size of the venting hole, and the cross-sectional shape of the bent pipe is set to J-shape.

[0010] In a preferred embodiment of the flexible metal roof waterproofing and ventilation device for building energy conservation described in this invention, the two sets of barrier plates are arranged symmetrically in the upper and lower positions, and the width of the barrier plate is smaller than the diameter of the bend.

[0011] As a preferred embodiment of the flexible metal roof waterproofing and ventilation device for building energy conservation described in this invention, the shape of the deflector strip is set to V-shape, and several sets of the deflector strips are arranged alternately along the length direction of the two sets of barrier plates.

[0012] As a preferred embodiment of the flexible metal roof waterproofing and venting device for building energy conservation described in this invention, the waterproof component includes a waterproof layer plate fixedly installed on the top of the insulation layer plate. The top of the waterproof layer plate has several sets of drainage grooves. A waterproof enclosure is fixedly installed on the outer side of the waterproof layer plate and the insulation layer plate. A several sets of drainage holes are opened on the outer side of the waterproof enclosure, and the positions of the several sets of drainage holes correspond one-to-one with the positions of the several sets of drainage grooves. A drainage pipe is embedded inside each of the several sets of drainage holes.

[0013] As a preferred embodiment of the flexible metal roof waterproofing and ventilation device for building energy conservation described in this invention, the inner side wall of the waterproof enclosure is provided with a drainage slope, and the connection between the waterproof enclosure and the waterproof layer and the insulation layer is filled with sealant.

[0014] As a preferred embodiment of the flexible metal roof waterproofing and venting device for building energy conservation described in this invention, the collection assembly includes a separation box fixedly installed on the outside of several sets of drainage pipes. A connecting shaft is fixedly installed inside the separation box, and a box door is rotatably installed on the outside of the connecting shaft. A placement rack and a support frame are fixedly installed on the side of the box door near the separation box. An initial filter basket is embedded inside the placement rack, and a filter screen is slidably installed inside the support frame. A drain outlet is opened at the bottom of the separation box, and a collection box is fixedly installed inside the drain outlet. A water outlet pipe is connected to the bottom of the collection box.

[0015] As a preferred embodiment of the building energy-saving metal flexible roof waterproof and ventilation device of the present invention, wherein: the back of the separation box is provided with a maintenance opening adapted to the size of the box door, and a handle is fixedly provided on the side of the box door away from the separation box; A magnetic suction plate is fixedly installed on the outside of the box door, and a magnet corresponding to the position of the magnetic suction plate is embedded on the outside of the separation box.

[0016] As a preferred embodiment of the flexible metal roof waterproofing and ventilation device for building energy conservation described in this invention, the placement frame and the support frame are both U-shaped, and the inner walls of the front and rear sides of the support frame are provided with sliding grooves for the filter screen to slide.

[0017] The beneficial effects of this invention are as follows: By combining the insulation layer and the array of vent holes in the protective component, this invention achieves uniform collection and directional discharge of water vapor within the insulation layer, avoiding the attenuation of insulation performance caused by localized water vapor accumulation. Combined with the symmetrically arranged baffle plates inside the bend and the staggered baffle strips on its surface, it can effectively prevent backflow of external rainwater during the venting process and improve the vapor-water separation efficiency by utilizing airflow disturbance, thereby enhancing waterproof reliability. At the same time, the waterproof layer covers the top of the insulation layer, and together with the waterproof enclosure with the drainage slope on the inner side and the sealant filling at the joint, a waterproof barrier is constructed to ensure the airtightness and watertightness of the venting nodes, thereby extending the overall service life of the flexible metal roof.

[0018] Another beneficial effect of the present invention is that the separation box forms a modular filtration space through the placement rack and support frame. The sliding cooperation between the inner wall groove of the support frame and the filter screen plate enables the quick pull-out maintenance of the screen plate. The magnetic cooperation between the magnetic suction plate of the box door and the embedded magnet of the separation box ensures the convenient opening and closing and sealing performance of the inspection port. This not only solves the problem of the single function of traditional exhaust devices, but also meets the water-saving requirements of green buildings through rainwater separation and purification. At the same time, the convenience of maintenance significantly reduces the long-term operation and maintenance costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of a flexible metal roof waterproofing and ventilation device for building energy conservation.

[0021] Figure 2 A schematic diagram of the protective components for a flexible metal roof waterproofing and ventilation device used for building energy conservation.

[0022] Figure 3 A schematic diagram showing the connection between the elbow and the barrier plate of a flexible metal roof waterproofing and ventilation device for building energy conservation.

[0023] Figure 4 A schematic diagram of the collection components of a flexible metal roof waterproofing and ventilation device for building energy conservation.

[0024] Figure 5 Waterproof and ventilation system for flexible metal roofs used in building energy conservation Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0025] Figure 6 A partial structural diagram of the collection component of a flexible metal roof waterproofing and ventilation device for building energy conservation.

[0026] In the diagram: 1. Building roof; 2. Protective components; 21. Insulation layer; 22. Vent; 23. Collection pipe; 24. Connecting pipe; 25. Bend; 26. Barrier plate; 27. Deflector strip; 28. Waterproof component; 281. Waterproof layer; 282. Waterproof enclosure; 283. Drain hole; 284. Drain pipe; 285. Drain groove; 3. Collection components; 31. Separation box; 32. Connecting shaft; 33. Box door; 34. Placement rack; 35. Support frame; 36. Initial filter basket; 37. Filter screen; 38. Collection box; 39. Water outlet pipe; 310. Magnetic plate; 311. Magnet. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0030] Example 1, referring to Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a waterproof and venting device for flexible metal roofs used in building energy conservation. It can effectively waterproof and vent the flexible metal roof, including a building roof 1, a protective component 2 disposed on the top of the building roof 1, and a collection component 3 disposed on the outside of the protective component 2.

[0031] Furthermore, the protective component 2 includes an insulation board 21 installed on the top of the building roof 1. The insulation board 21 has several sets of vent holes 22 inside. Each set of vent holes 22 has a collection pipe 23 embedded inside. Each set of collection pipes 23 has a connecting pipe 24 connected to its outer side. Each set of connecting pipes 24 has a bend 25 threaded at its top end. Two sets of baffle plates 26 are fixedly installed inside the bend 25. Several sets of deflectors 27 are fixedly installed on the upper and lower sides of the two sets of baffle plates 26. A waterproof component 28 is installed on the top of the insulation board 21.

[0032] During use, saturated water vapor in the metal flexible roof insulation layer is uniformly collected by entering the air inlet on the outside of the collection pipe 23 through the exhaust holes 22 arranged in an array along the length of the insulation layer 21. The collection pipe 23 guides the water vapor into the bend pipe 25 through the connecting pipe 24. The downward opening structure of the bend pipe 25 forms a gravity self-sealing to prevent external rainwater from directly flowing back in. The baffle plates 26 arranged symmetrically inside the bend pipe 25 and the staggered baffle strips 27 on its surface disturb and slow down the airflow, causing the entrained water droplets to separate due to inertial collision and centrifugal force and flow back along the pipe wall. The waterproof component 28 on the top of the insulation layer 21 covers the exhaust area to prevent leakage at the joints.

[0033] In summary, the structural cooperation between the insulation layer 21 and the array of vent holes 22 enables uniform collection and directional discharge of water vapor within the insulation layer, avoiding the degradation of insulation performance caused by local water vapor accumulation; the air-water separation effect of the bend 25, the internal baffle plate 26, and the baffle strip 27 effectively prevents rainwater backflow and improves waterproof reliability.

[0034] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention, which differs from the first embodiment in that it further includes guiding and discharging the water collected from the roof waterproofing. In the previous embodiment, the building energy-saving metal flexible roof waterproofing and venting device includes a building roof 1, a protective component 2 disposed on the top of the building roof 1, and a collection component 3 disposed on the outside of the protective component 2.

[0035] Furthermore, the protective component 2 includes an insulation board 21 installed on the top of the building roof 1. The insulation board 21 has several sets of vent holes 22 inside. Each set of vent holes 22 has a collection pipe 23 embedded inside. Each set of collection pipes 23 has a connecting pipe 24 connected to its outer side. Each set of connecting pipes 24 has a bend 25 threaded at its top end. Two sets of baffle plates 26 are fixedly installed inside the bend 25. Several sets of deflectors 27 are fixedly installed on the upper and lower sides of the two sets of baffle plates 26. A waterproof component 28 is installed on the top of the insulation board 21.

[0036] Furthermore, several sets of exhaust holes 22 are arranged in an array along the length of the insulation layer 21, and several sets of air inlets are opened on the outer side of the collection pipe 23.

[0037] Specifically, saturated water vapor in the metal flexible roof insulation layer enters the air inlet on the outside of the collection pipe 23 through the exhaust holes 22 arranged in an array along the length of the insulation layer 21, thereby achieving uniform collection and directional flow of water vapor in the insulation layer.

[0038] Furthermore, the size of the collection pipe 23 is adapted to the size of the exhaust port 22, and the cross-sectional shape of the bend 25 is set to J-shape.

[0039] Specifically, the collecting pipe 23 guides water vapor into the J-shaped bend pipe 25 through the connecting pipe 24. The downward opening structure of the bend pipe 25 forms a gravity self-sealing to prevent external rainwater from directly flowing back in.

[0040] Furthermore, the two sets of baffles 26 are arranged symmetrically, one above the other, and the width of the baffles 26 is smaller than the diameter of the bend 25.

[0041] Furthermore, the shape of the spoiler strip 27 is set as V-shaped, and several sets of spoiler strips 27 are arranged alternately along the length direction of the two sets of baffle plates 26.

[0042] Specifically, the barrier plate 26 and the V-shaped baffle strip 27 together construct a three-dimensional blocking structure with an angle. When rainwater is blown obliquely into the bend pipe 25 or splashed in, the two sets of staggered barrier plates 26 first form the first interception barrier. Then, the staggered arrangement of the V-shaped baffle strip 27 forms a complex tortuous channel, which effectively intercepts the rainwater that penetrates the first barrier. The intercepted rainwater flows back and is discharged along the angle direction under the guidance of the inclined surface of the V-shaped baffle strip 27, thereby achieving efficient vapor-water separation and waterproof protection.

[0043] Furthermore, the waterproof component 28 includes a waterproof layer 281 fixedly installed on the top of the insulation layer 21. The top of the waterproof layer 281 is provided with a number of drainage grooves 285. A waterproof enclosure 282 is fixedly installed on the outside of the waterproof layer 281 and the insulation layer 21. A number of drainage holes 283 are provided on the outside of the waterproof enclosure 282. The positions of the drainage holes 283 correspond one-to-one with the positions of the drainage grooves 285. Drainage pipes 284 are embedded inside the drainage holes 283.

[0044] Furthermore, the inner wall of the waterproof enclosure 282 is provided with a drainage slope, and the connection between the waterproof enclosure 282 and the waterproof layer 281 and the insulation layer 21 is filled with sealant.

[0045] It should be noted that the waterproof layer 281 covers the entire venting area, and the drainage slope of the inner wall of the waterproof enclosure 282 will guide any possible rainwater infiltration away from the connection node. Furthermore, the connection between the waterproof enclosure 282 and the waterproof layer 281 and the insulation layer 21 is filled with sealant to form a waterproof barrier that blocks capillary leakage, ensuring the long-term airtightness and watertightness of the venting node.

[0046] When in use, when rainwater seeps into the surface of the waterproof layer 281, the drainage slope guides the water to the drainage groove 285, and then discharges it in an orderly manner through the drainage pipe 284 in the drainage hole 283. At the same time, the connection between the waterproof enclosure 282 and the waterproof layer 281 and the insulation layer 21 is filled with sealant to block capillary leakage.

[0047] In summary, by covering the venting area with the waterproof layer 281, and with the drainage slope of the waterproof enclosure 282 and the directional drainage of the drainage pipe 284, a dual barrier combining active drainage and passive waterproofing is constructed, ensuring the airtightness and watertightness of the venting nodes and significantly extending the overall service life of the flexible metal roof.

[0048] Example 3, referring to Figures 1-6This is the third embodiment of the present invention. This embodiment provides a waterproof and venting device for flexible metal roofs used in building energy conservation. It can realize waterproof and venting of flexible metal roofs to collect, filter and remove impurities from discharged rainwater, etc., so as to facilitate secondary use. It includes a building roof 1, a protective component 2 disposed on the top of the building roof 1, and a collection component 3 disposed on the outside of the protective component 2.

[0049] Furthermore, the protective component 2 includes an insulation board 21 installed on the top of the building roof 1. The insulation board 21 has several sets of vent holes 22 inside. Each set of vent holes 22 has a collection pipe 23 embedded inside. Each set of collection pipes 23 has a connecting pipe 24 connected to its outer side. Each set of connecting pipes 24 has a bend 25 threaded at its top end. Two sets of baffle plates 26 are fixedly installed inside the bend 25. Several sets of deflectors 27 are fixedly installed on the upper and lower sides of the two sets of baffle plates 26. A waterproof component 28 is installed on the top of the insulation board 21.

[0050] Furthermore, several sets of exhaust holes 22 are arranged in an array along the length of the insulation layer 21, and several sets of air inlets are opened on the outer side of the collection pipe 23.

[0051] Furthermore, the size of the collection pipe 23 is adapted to the size of the exhaust port 22, and the cross-sectional shape of the bend 25 is set to J-shape.

[0052] Furthermore, the two sets of baffles 26 are arranged symmetrically, one above the other, and the width of the baffles 26 is smaller than the diameter of the bend 25.

[0053] Furthermore, the shape of the spoiler strip 27 is set as V-shaped, and several sets of spoiler strips 27 are arranged alternately along the length direction of the two sets of baffle plates 26.

[0054] Furthermore, the waterproof component 28 includes a waterproof layer 281 fixedly installed on the top of the insulation layer 21. The top of the waterproof layer 281 is provided with a number of drainage grooves 285. A waterproof enclosure 282 is fixedly installed on the outside of the waterproof layer 281 and the insulation layer 21. A number of drainage holes 283 are provided on the outside of the waterproof enclosure 282. The positions of the drainage holes 283 correspond one-to-one with the positions of the drainage grooves 285. Drainage pipes 284 are embedded inside the drainage holes 283.

[0055] Furthermore, the inner wall of the waterproof enclosure 282 is provided with a drainage slope, and the connection between the waterproof enclosure 282 and the waterproof layer 281 and the insulation layer 21 is filled with sealant.

[0056] Furthermore, the collection component 3 includes a separation box 31 fixedly installed on the outside of several sets of drain pipes 284. A connecting shaft 32 is fixedly installed inside the separation box 31. A box door 33 is rotatably installed on the outside of the connecting shaft 32. A placement rack 34 and a support frame 35 are fixedly installed on the side of the box door 33 near the separation box 31. An initial filter basket 36 is embedded inside the placement rack 34. A filter screen 37 is slidably installed inside the support frame 35. A drain outlet is opened at the bottom of the separation box 31, and a collection box 38 is fixedly installed inside the drain outlet. A water outlet pipe 39 is connected to the bottom of the collection box 38.

[0057] Furthermore, a maintenance opening adapted to the size of the door 33 is provided on the back of the separation box 31, and a handle is fixedly provided on the side of the door 33 away from the separation box 31; a magnetic plate 310 is fixedly provided on the outside of the door 33, and a magnet 311 corresponding to the position of the magnetic plate 310 is embedded on the outside of the separation box 31.

[0058] Furthermore, both the placement rack 34 and the support rack 35 are U-shaped, and the inner walls of the front and rear sides of the support rack 35 are provided with grooves for the filter screen plate 37 to slide.

[0059] During use, when it rains, the liquid water from the roof runoff and the bend 25 flows into the collection component 3 located outside the protective component 2. After the water enters the separation box 31, it is first intercepted by the initial filter basket 36 at the top, and then, guided by the U-shaped support frame 35, it flows through the filter screens 37 inserted in the sliding grooves on the front and rear sides for deep purification. The clean water after multi-stage filtration is collected in the collection box 38 at the bottom of the separation box 31 for temporary storage, and finally discharged through the outlet pipe 39 for reuse. When the system needs maintenance, the box door 33 on the back of the separation box 31 can be opened by the handle. The magnetic suction plate 310 on the outside of the box door 33 and the magnet 311 embedded on the outside of the separation box 31 magnetically attract each other to achieve convenient opening and closing and sealing. The modular structure of the U-shaped placement rack 34 and the U-shaped support frame 35 ensures that the filter screens 37 can be slid out and cleaned along the sliding groove, thereby ensuring the convenience of maintenance and the stability of operation of the system throughout its entire life cycle.

[0060] In summary, the separation box 31 forms a modular filtration space through the placement rack 34 and the support frame 35. The sliding cooperation between the inner wall groove of the support frame 35 and the filter screen 37 enables quick pull-out maintenance. The magnetic cooperation between the magnetic suction plate 310 of the box door 33 and the embedded magnet 311 of the separation box 31 ensures convenient opening and closing and airtight performance of the inspection port. This not only solves the problem of the single function of traditional exhaust devices, but also meets the water-saving requirements of green buildings through rainwater separation and purification. At the same time, the convenience of maintenance significantly reduces long-term operation and maintenance costs.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A waterproof and ventilated flexible metal roofing device for building energy conservation, characterized in that: Includes a building roof (1), a protective component (2) disposed on the top of the building roof (1), and a collection component (3) disposed on the outside of the protective component (2); The protective component (2) includes an insulation board (21) installed on the top of the building roof (1). The insulation board (21) has several sets of vent holes (22) inside. Each set of vent holes (22) is fitted with a collection pipe (23). Each set of collection pipes (23) is connected to a connecting pipe (24) on the outside. Each set of connecting pipes (24) has a bend pipe (25) threaded on its top end. Two sets of baffle plates (26) are fixedly installed inside the bend pipe (25). Several sets of baffle strips (27) are fixedly installed on the upper and lower sides of the two sets of baffle plates (26). A waterproof component (28) is installed on the top of the insulation board (21).

2. The building energy-saving flexible metal roof waterproofing and ventilation device as described in claim 1, characterized in that: Several sets of exhaust holes (22) are arranged in an array along the length of the insulation plate (21), and several sets of air inlets are opened on the outer side of the collection pipe (23).

3. The building energy-saving metal flexible roof waterproofing and ventilation device as described in claim 2, characterized in that: The size of the collecting pipe (23) is adapted to the size of the exhaust hole (22), and the cross-sectional shape of the bent pipe (25) is set to J-shape.

4. The waterproof and ventilated metal flexible roofing device for building energy conservation as described in claim 3, characterized in that: The two sets of barrier plates (26) are arranged symmetrically from top to bottom, and the width of the barrier plate (26) is smaller than the diameter of the bend (25).

5. The building energy-saving metal flexible roof waterproofing and ventilation device as described in claim 4, characterized in that: The shape of the baffle strip (27) is set as V-shaped, and several sets of the baffle strip (27) are arranged alternately along the length direction of the two sets of baffle plates (26).

6. The building energy-saving metal flexible roof waterproofing and ventilation device as described in claim 5, characterized in that: The waterproof component (28) includes a waterproof layer plate (281) fixedly installed on the top of the insulation layer plate (21). The top of the waterproof layer plate (281) is provided with a number of drainage grooves (285). A waterproof enclosure (282) is fixedly installed on the outside of the waterproof layer plate (281) and the insulation layer plate (21). A number of drainage holes (283) are provided on the outside of the waterproof enclosure (282). The positions of the drainage holes (283) correspond one-to-one with the positions of the drainage grooves (285). Drainage pipes (284) are embedded inside the drainage holes (283).

7. The building energy-saving metal flexible roof waterproofing and ventilation device as described in claim 6, characterized in that: The inner wall of the waterproof enclosure (282) is provided with a drainage slope, and the connection between the waterproof enclosure (282) and the waterproof layer (281) and the insulation layer (21) is filled with sealant.

8. The waterproof and ventilated metal flexible roofing device for building energy conservation as described in claim 7, characterized in that: The collection assembly (3) includes a separation box (31) fixedly installed on the outside of several sets of drain pipes (284). A connecting shaft (32) is fixedly installed inside the separation box (31). A box door (33) is rotatably installed on the outside of the connecting shaft (32). A placement rack (34) and a support frame (35) are fixedly installed on the side of the box door (33) near the separation box (31). An initial filter basket (36) is embedded inside the placement rack (34). A filter screen plate (37) is slidably installed inside the support frame (35). A drain outlet is opened at the bottom of the separation box (31), and a collection box (38) is fixedly installed inside the drain outlet. A water outlet pipe (39) is connected to the bottom of the collection box (38).

9. A waterproof and ventilated metal flexible roofing device for building energy conservation as described in claim 8, characterized in that: The back of the separation box (31) is provided with a maintenance opening that is adapted to the size of the box door (33), and a handle is fixedly provided on the side of the box door (33) away from the separation box (31); A magnetic suction plate (310) is fixedly installed on the outside of the box door (33), and a magnet (311) corresponding to the position of the magnetic suction plate (310) is embedded on the outside of the separation box (31).

10. A waterproof and ventilated metal flexible roofing device for building energy conservation as described in claim 9, characterized in that: The placement rack (34) and the support rack (35) are both U-shaped, and the inner walls of the front and rear sides of the support rack (35) are provided with sliding grooves for the filter screen plate (37) to slide.

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