A roof drainage system and drainage assembly for an extension to an existing building

Abstract

The application provides a roof drainage system and drainage assembly for extension of existing building, the roof drainage system comprises X drainage subsystems and Y second drainage subsystems, the first drainage subsystem guides the roof rainwater of newly-built elevated slope roof to flow away from the slope surface of the first existing traditional slope roof; the second drainage subsystem collects the roof rainwater of the second existing traditional slope roof and newly-built equal-height slope roof to flow away from the slope surface of the third existing traditional slope roof. The drainage assembly is based on the roof drainage system. The application adopts the X drainage subsystems and Y second drainage subsystems to drain the roof rainwater of the newly-built traditional building to the slope surface away from the slope surface of the existing traditional building of the newly-built traditional building, connects the drainage of the newly-built traditional building and the existing traditional building without affecting the traditional building model landscape and use, and ensures that the roof eaves of the newly-built traditional building slope roof and the existing traditional building slope roof which are adjacent to each other do not drip rainwater.

Description

Technical Field

[0001] This invention relates to the field of traditional building technology, and in particular to a roof drainage system and drainage components for the expansion of existing buildings. Background Technology

[0002] The statements in this section are merely background information relating to this disclosure and do not necessarily constitute prior art.

[0003] Traditional architecture is a precious cultural heritage with historical and cultural value. Due to its unique architectural style and characteristics, it forms an important part of a city's culture and history. Existing traditional buildings are usually built a long time ago, having withstood the test of time. Besides their historical value, they also possess artistic, cultural, social, and economic value, serving as witnesses to social development and historical evolution.

[0004] Many existing traditional buildings require renovation due to their age or other factors. When frequent or impossible renovations are needed, rebuilding ancient buildings has become a new way to protect and pass on traditional culture. In some cases, when existing traditional buildings cannot meet the needs, constructing new ancient buildings can satisfy practical requirements while preserving the cultural heritage of traditional architecture.

[0005] In addition, traditional architecture can promote the development of tourism and cultural industries. New traditional buildings can be built on the basis of existing traditional buildings and adapted to different geographical environments and cultural atmospheres, so as to better integrate into the surrounding environment and increase the value of the landscape.

[0006] Traditional building roof drainage methods mainly include pitched roof drainage, contour drainage, and combined drainage. Pitched roof drainage involves designing the roof into a sloping shape, allowing rainwater to flow from higher to lower areas. Contour drainage involves designing the roof into multiple small slopes, with drainage facilities around each slope, allowing rainwater to be collected and discharged. Combined drainage integrates multiple drainage methods. In general, traditional building roof drainage methods aim to drain rainwater from the roof to prevent water accumulation or leaks. Because pitched roofs have a certain slope, gravity helps water flow along the slope to the eaves. Thus, traditional buildings primarily rely on the slope of the pitched roof and the arrangement of drainage facilities to achieve rainwater drainage.

[0007] When a new traditional building is constructed adjacent to an existing traditional building, how to connect the drainage system of the new traditional building with the drainage system of the existing traditional building has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0008] This invention provides a roof drainage system and drainage components for the expansion of existing buildings. It uses X drainage subsystems and Y secondary drainage subsystems to discharge rainwater from the roof of the newly built traditional building to the slope of the existing traditional building's pitched roof, which is far away from the newly built traditional building. Without affecting the shape, landscape and use of the traditional building, it connects the drainage of the newly built and existing traditional buildings, ensuring that rainwater does not drip from the eaves of the adjacent pitched roofs of the newly built and existing traditional buildings.

[0009] The technical solution for achieving the objective of this invention is as follows:

[0010] On one hand, the present invention provides a roof drainage system for the expansion of an existing building, comprising:

[0011] The first drainage system comprises: X first drainage subsystems located between X existing traditional buildings and X newly built traditional buildings, where X ≥ 2; the X newly built traditional buildings include X newly built raised pitched roofs, and the X existing traditional buildings adjacent to the X newly built traditional buildings include X existing traditional pitched roofs, wherein the X newly built raised pitched roofs are all higher than the X existing traditional pitched roofs, making the first newly built traditional buildings higher than the first existing traditional buildings; the first drainage subsystems extend from below the eaves of the newly built raised pitched roofs to the outer side of the ridge of the first existing traditional pitched roofs; and the first drainage subsystems guide the rainwater from the newly built raised pitched roofs to the slope of the first existing traditional pitched roofs away from the newly built raised pitched roofs.

[0012] The second drainage system includes: Y second drainage subsystems, Y≥1; the second drainage subsystems collect rainwater from the roofs of Y existing traditional buildings and Y newly built traditional buildings and divert the rainwater to Z existing traditional buildings, Z≥1; the second drainage subsystems are located between the existing traditional buildings, the newly built traditional buildings and the third existing traditional buildings, the Y newly built traditional buildings include Y newly built sloping roofs, the Y existing traditional buildings adjacent to the Y newly built traditional buildings include Y existing traditional pitched roofs, and the Z existing traditional buildings near the Y existing traditional buildings include Z existing traditional pitched roofs, the Y newly built sloping roofs are all higher than the Y existing traditional pitched roofs, and the Z existing traditional pitched roofs are lower than the newly built sloping roofs and the existing traditional pitched roofs, so that the roof rainwater collected by the second drainage subsystems flows to the slope of the third existing traditional pitched roofs away from the newly built sloping roofs.

[0013] Based on one aspect, in one possible implementation, each of the first drainage subsystems includes a flow guiding unit and a support unit for supporting the flow guiding unit, the flow guiding unit being located above the support unit;

[0014] One side of the flow guiding unit extends to the eaves of the newly built raised pitched roof, and the other side of the flow guiding unit extends to the outer side of the ridge of the first existing traditional pitched roof.

[0015] One side of the support unit is fixed to the roof purlin of the newly built raised pitched roof, and the other side of the support unit is fixed to the ridge of the first existing traditional pitched roof.

[0016] Based on one aspect, in one possible implementation, the support unit includes several support purlins arranged parallel to the roof purlins, and the several support purlins are arranged sequentially along the length direction of the first newly built traditional building;

[0017] Each supporting purlin extends from the end of the roof purlin toward the ridge of the first existing conventional pitched roof;

[0018] The first existing traditional pitched roof has several ridge clips fixedly installed on the ridge, and the ridge clips are fixedly connected to the supporting purlins;

[0019] The flow guiding unit is fixed to the support purlin.

[0020] Based on one aspect, in one possible implementation, the first drainage subsystem is aligned with the length direction of the first existing conventional pitched roof, so that the roof rainwater guided by the first drainage subsystem is evenly discharged onto the slope of the first existing conventional pitched roof away from the newly built raised pitched roof, so as to achieve that the rainwater on the slope is evenly dripped down the eaves.

[0021] Based on one aspect, in one possible implementation, the second drainage subsystem includes: a water collection trough for collecting rainwater from the newly constructed contoured roof and the second existing conventional pitched roof, and a drainage pipe for discharging rainwater from the newly constructed contoured roof and the second existing conventional pitched roof from the third existing conventional pitched roof.

[0022] The diversion pipe connects to the water collection trough. The diversion pipe is located on the outside of the newly built equal-slope roof and the second existing traditional pitched roof. The diversion pipe extends from the water collection trough to the outside of the ridge of the third existing traditional pitched roof.

[0023] Based on one aspect, in one possible implementation, the water collection trough is provided with the guide pipes at both ends along its length, and the two guide pipes guide the rainwater in the water collection trough to the two existing conventional pitched roofs.

[0024] The two third existing traditional buildings are located on either side of the second existing traditional building.

[0025] Based on one aspect, in one possible implementation, the length of the guide pipe extending to the third existing conventional pitched roof is less than 1 / 2 the length of the third existing conventional pitched roof;

[0026] The guide pipe extends to one end of the slope of the third existing traditional pitched roof along the length direction;

[0027] The amount of rainwater dripping from the third existing traditional sloping roof at one end along the length of the slope away from the newly built equal-elevation roof is greater than the amount of rainwater dripping from the third existing traditional sloping roof at the other end along the length of the slope away from the newly built equal-elevation roof.

[0028] On the other hand, the present invention provides a drainage component for the expansion of existing buildings. Based on the above-mentioned roof drainage system for the expansion of existing buildings, the drainage component includes:

[0029] The rainwater from the newly built raised pitched roof is guided to X diversion units on the first existing traditional pitched roof that are far away from the slope of the newly built raised pitched roof, where X ≥ 2; one side of the diversion unit extends to the eaves of the newly built raised pitched roof, and the other side of the diversion unit extends to the outer side of the ridge of the first existing traditional pitched roof.

[0030] X support units are used to support the flow guiding unit. The support units are located below the flow guiding unit. One side of the support unit is fixed to the roof purlin of the newly built raised pitched roof, and the other side of the support unit is fixed to the ridge of the first existing traditional pitched roof.

[0031] Y collection troughs are used to collect rainwater from newly built contoured roofs and rainwater from second existing traditional pitched roofs, where Y≥1;

[0032] N*Y drainage pipes, where N≥1, will be used to discharge rainwater from the newly constructed contoured roof and the second existing traditional pitched roof to the third existing traditional pitched roof. The drainage pipes will be connected to the water collection trough and located outside the rainwater collection trough and the second existing traditional pitched roof. The drainage pipes will extend from the water collection trough to the outside of the ridge of the third existing traditional pitched roof.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] This invention employs X drainage subsystems and Y secondary drainage subsystems to discharge rainwater from the roof of newly constructed traditional buildings to the slope of the existing traditional building's pitched roof, which is far from the newly constructed traditional building. This connects the drainage systems of the newly constructed and existing traditional buildings without affecting their shape, landscape, or use, ensuring that rainwater does not drip from the eaves of the adjacent pitched roofs of both the newly constructed and existing traditional buildings. Attached Figure Description

[0035] Figure 1 A schematic diagram of a roof drainage system for the expansion of an existing building, provided by the present invention;

[0036] Figure 2This invention provides a schematic diagram of the plan for expanding an existing building into a new one.

[0037] Figure 3 A schematic diagram of a first drainage system between a first existing traditional building and a first newly built traditional building provided by the present invention. Figure 1 ;

[0038] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0039] Figure 5 A schematic diagram of a first drainage system between a first existing traditional building and a first newly built traditional building provided by the present invention. Figure 2 ;

[0040] Figure 6 A plan view of the second drainage system between the second existing traditional building, the third existing traditional building, and the second newly built traditional building provided by the present invention;

[0041] Figure 7 Elevation diagram of the second drainage system between the second existing traditional building, the third existing traditional building, and the second newly built traditional building provided by the present invention. Figure 1 ;

[0042] Figure 8 Elevation diagram of the second drainage system between the second existing traditional building, the third existing traditional building, and the second newly built traditional building provided by the present invention. Figure 2 ;

[0043] Figure 9 A schematic diagram of a first drainage system between a first existing traditional building and a first newly built traditional building provided by the present invention. Figure 2 ;

[0044] Figure 10 Illustration of the ridge clip provided by the present invention;

[0045] Figure 11 Figure 1 illustrates the water outlet hole configuration method for the corresponding cylindrical tile provided by the present invention;

[0046] Figure 12 Figure 2 shows the water outlet hole arrangement method of the corresponding cylindrical tile provided by the present invention;

[0047] Figure 13 The diagram shows the water outlet holes for the corresponding cylindrical tile and the nozzle arrangement for the flat tile provided by the present invention.

[0048] Figure 14 The second illustration shows the arrangement of the water outlet holes for the corresponding cylindrical tile and the nozzles for the flat tile provided by the present invention.

[0049] In the diagram, 100 - First existing traditional building; 110 - First existing traditional pitched roof; 200 - First newly built traditional building; 210 - Newly built raised pitched roof; 300 - First drainage subsystem; 310 - Drainage unit; 320 - Support unit; 400 - Second existing traditional building; 410 - Second existing traditional pitched roof; 500 - Second newly built traditional building; 510 - Newly built level pitched roof; 600 - Third existing traditional building; 610 - Third existing traditional pitched roof; 700 - Second drainage subsystem; 710 - Water collection trough; 720 - Drainage pipe. Detailed Implementation

[0050] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0051] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 This invention provides a roof drainage system for the expansion of an existing building, comprising: a first drainage system and a second drainage subsystem 700, wherein:

[0052] The first drainage system includes: X first drainage subsystems 300 located between X existing traditional buildings 100 and X newly built traditional buildings 200, where X ≥ 2; the X newly built traditional buildings 200 include X newly built raised pitched roofs 210, and the X existing traditional buildings 100 adjacent to the X newly built traditional buildings 200 include X existing traditional pitched roofs 110. The X newly built raised pitched roofs 210 are all higher than the X existing traditional pitched roofs 110, so that the first newly built traditional buildings 200 are higher than the first existing traditional buildings 100. The first drainage subsystems 300 extend from below the eaves of the newly built raised pitched roofs 210 to the outside of the ridge of the first existing traditional pitched roofs 110. The first drainage subsystems 300 guide the rainwater from the roof of the newly built raised pitched roofs 210 to the slope of the first existing traditional pitched roofs 110 away from the newly built raised pitched roofs 210.

[0053] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8The present invention provides a roof drainage system for the expansion of an existing building. Preferably, the first drainage subsystem 300 is aligned with the length direction of the first existing traditional pitched roof 110, so that the roof rainwater guided by the first drainage subsystem 300 is evenly discharged to the slope of the first existing traditional pitched roof 110 away from the newly built raised pitched roof 210, so as to achieve the effect of rainwater dripping evenly along the eaves on the slope.

[0054] Please continue reading. Figure 2 The existing buildings in this embodiment of the invention include two opposing first existing traditional buildings 100, and two first newly constructed traditional buildings 200 located between the two first existing traditional buildings 100. Please refer to [link / reference]. Figure 9 To facilitate drainage in newly constructed traditional buildings, this embodiment of the invention raises the roof of the first newly constructed traditional building 200 to a certain height. Figure 2 The newly constructed raised sloping roof 210 shown in Figure (a) depicts rainwater flowing from the newly constructed raised sloping roof 210 to the first existing traditional sloping roof 110 of the first existing traditional building 100. The rainwater flows down the slope between the newly constructed raised sloping roof 210 and the first existing traditional sloping roof 110, flowing between the first newly constructed traditional building 200 and the first existing traditional building 100. The first newly constructed traditional building 200 and the first existing traditional building 100, as landscape features, would affect the visitor experience. Therefore, in this embodiment of the invention, a portion of the newly constructed raised sloping roof 210 is located above the first existing traditional sloping roof 110, and a first drainage subsystem 300 is provided between the newly constructed raised sloping roof 210 and the first existing traditional sloping roof 110. Figure (b) shows rainwater from the newly constructed raised sloping roof 210 being discharged down the slope of the first existing traditional sloping roof 110 away from the newly constructed raised sloping roof through the first drainage subsystem 300.

[0055] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The present invention provides a roof drainage system for the expansion of an existing building. Preferably, each first drainage subsystem 300 includes a flow guiding unit 310 and a support unit 320 for supporting the flow guiding unit 310. The flow guiding unit 310 is located above the support unit 320. One side of the flow guiding unit 310 extends to the eaves of the newly built raised pitched roof 210, and the other side of the flow guiding unit 310 extends to the outer side of the ridge of the first existing traditional pitched roof 110. One side of the support unit 320 is fixed to the roof purlin of the newly built raised pitched roof 210, and the other side of the support unit 320 is fixed to the ridge of the first existing traditional pitched roof 110.

[0056] In this embodiment of the invention, a support unit 320 is used to support the flow guiding unit 310 between the newly built raised pitched roof 210 and the first existing traditional pitched roof 110. Rainwater on the slope of the newly built raised pitched roof 210 close to the first existing traditional pitched roof 110 flows along the flow guiding unit 310 to the slope of the first existing traditional pitched roof 110 away from the newly built raised pitched roof 210.

[0057] For practical use, please refer to [the relevant documentation / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The present invention provides a roof drainage system for the expansion of an existing building. Preferably, the support unit 320 includes a plurality of support purlins arranged parallel to the roof purlins. The plurality of support purlins are arranged sequentially along the length direction of the first newly built traditional building 200. Each support purlin extends from the end of the roof purlin towards the ridge of the first existing traditional pitched roof 110. A plurality of ridge clips are fixed on the ridge of the first existing traditional pitched roof 110, and the ridge clips are fixedly connected to the support purlins. The flow guiding unit 310 is fixed to the support purlins.

[0058] The first type of traditional pitched roof 110 has several ridge clips fixed to its ridge. For the structure of the ridge clips, please refer to [link to relevant documentation]. Figure 10 As shown, the preferred guide unit 310 is a glass canopy. Each ridge clip is fixedly connected to a supporting purlin, which is fixedly connected to the lower end of the eaves of the extended building. A glass canopy is fixed to the supporting purlin, extending beyond the ridge of the first existing traditional pitched roof 110 and bending towards the slope along the ridge. In this embodiment, the ridge clips on the ridge connect to the supporting purlins, and the upper surfaces of several supporting purlins form a flat mounting surface to facilitate the installation of the glass canopy on the supporting purlins. This allows the glass canopy to form a slope with the roof of the first newly constructed traditional building 200, allowing rainwater from the roof of the first newly constructed traditional building 200 to drain along the glass canopy to the back of the first existing traditional pitched roof 110. Preferably, the end of the glass canopy extends beyond the ridge of the existing building, allowing rainwater on the glass canopy to flow along the glass canopy to the back of the existing building's roof and drain away smoothly. The ridge clamp includes a U-shaped body with grooves that match the shape of the ridge, allowing the U-shaped body to be stably fastened to the ridge. A connector is fixedly connected to the U-shaped body and is fixedly connected to the supporting purlin, wherein the connector and the side of the U-shaped body form an upward angle. For more details, please refer to [link / reference]. Figure 9As shown, for ease of installation, the preferred U-shaped body includes two vertical plates and an arched plate connected to the top of the two vertical plates. The two vertical plates fit snugly against the front and back of the ridge, while the arched plate mates with the upper end of the ridge. The ridge clips need to be prefabricated according to the dimensions of the ridge. To improve the connection stability between the U-shaped body and the ridge, a flexible element is provided on the inner wall of the vertical plates of the U-shaped body. This flexible element can be made of rubber and is a curved cylindrical shape. The flexible element is preferably a triangular prism. To reduce the overall weight of the flow guiding unit and the support unit, the support purlin in this embodiment is preferably a hollow tube, with a connector inserted into the end of the support purlin. The connector is triangular and can be precisely inserted into the end of the support purlin. The connector and the support purlin can be welded together as needed. It should be noted that in this embodiment of the invention, the connection between the vertical plate of the U-shaped component and the ridge of the existing building cannot be made by bolts or other hard connections because the installation of the U-shaped component cannot damage the existing building.

[0059] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 This invention provides a roof drainage system for the expansion of an existing building, comprising: a first drainage system and a second drainage subsystem 700, wherein:

[0060] The second drainage system includes: Y second drainage subsystems 700, where Y ≥ 1; the second drainage subsystems 700 collect rainwater from the roofs of Y existing traditional buildings 400 and Y newly built traditional buildings 500 and divert the rainwater to Z existing traditional buildings 600, where Z ≥ 1; the second drainage subsystems 700 are located between the existing traditional buildings 400, the newly built traditional buildings 500 and the third existing traditional buildings 600, and the Y newly built traditional buildings 500 include Y newly built equal-slope roofs 510, adjacent to the Y newly built traditional buildings 500. The second existing traditional building 400 includes Y second existing traditional pitched roofs 410. The Z third existing traditional buildings 600 adjacent to the Y second existing traditional buildings 400 include Z third existing traditional pitched roofs 610. The Y newly built equal-height pitched roofs 510 are all higher than the Y second existing traditional pitched roofs 410. The Z third existing traditional pitched roofs 610 are lower than the newly built equal-height pitched roofs 510 and the second existing traditional pitched roofs 410, so that the roof rainwater collected by the second drainage subsystem 700 flows to the third existing traditional pitched roofs 610 away from the slope of the newly built equal-height pitched roofs.

[0061] This invention allows rainwater from the second existing traditional pitched roof 410 and the second pitched roof to be discharged from the third existing traditional pitched roof 610, which does not affect the traditional building and enables the connection of multiple traditional building drainage systems.

[0062] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The present invention provides a roof drainage system for the expansion of an existing building, preferably a second drainage subsystem 700 comprising: a water collection trough 710 for collecting rainwater from a newly constructed contoured roof 510 and a second existing traditional pitched roof 410; and a guide pipe 720 for discharging rainwater from the newly constructed contoured roof 510 and the second existing traditional pitched roof 410 to a third existing traditional pitched roof 610; the guide pipe 720 is connected to the water collection trough 710, and is located outside the rainwater from the newly constructed contoured roof 510 and the second existing traditional pitched roof 410, extending from the water collection trough 710 to the outside of the ridge of the third existing traditional pitched roof 610.

[0063] In this embodiment of the invention, the water collection trough 710 is used to collect rainwater from the second existing traditional pitched roof 410 and the second existing traditional pitched roof. The drainage pipe 720 of this embodiment discharges the rainwater from the second existing traditional pitched roof 410 and the second existing traditional pitched roof to the third existing traditional pitched roof 610. The drainage pipe 720 is connected to the water collection trough 710 and is located outside the second existing traditional pitched roof 410 and the second existing traditional pitched roof. The drainage pipe 720 extends from the water collection trough 710 to the third existing traditional pitched roof 610, which is located beside the second existing traditional pitched roof 410. This embodiment of the invention uses a low-cost water collection trough 710 and drainage pipe 720 to achieve drainage from the second existing traditional pitched roof 410, the newly built equal-height pitched roof 510, and the third existing traditional pitched roof 610 without altering the drainage system of each existing pitched roof, thus having the advantage of low construction cost for the drainage system.

[0064] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8The present invention provides a roof drainage system for the expansion of an existing building, wherein the water collection trough 710 is preferably provided with guide pipes 720 at both ends along the length direction, and the two guide pipes 720 guide the rainwater in the water collection trough 710 to two third existing traditional pitched roofs 610; the two third existing traditional buildings 600 are located on both sides of the second existing traditional building 400.

[0065] In practical applications, in preferred embodiments of the present invention, second traditional buildings are provided on both sides of the first existing traditional building; the water collection trough 710 is provided with guide pipes 720 at both ends along its length, and the two guide pipes 720 guide the rainwater in the water collection trough 710 to the two second existing traditional buildings. In this embodiment of the present invention, the rainwater in the water collection trough 710 is divided into two paths, which are respectively transported to the third existing traditional pitched roof 610 of the second existing traditional buildings for discharge, so that the amount of rainwater collected in the water collection trough 710 is less than the amount of rainwater discharged from the two paths, thus avoiding the overflow of rainwater in the water collection trough 710 from affecting the traditional buildings.

[0066] To protect the traditional pitched roof of the building, this embodiment of the invention provides several water outlet holes on the periphery of the end of the diversion pipe 720. By using these water outlet holes at the end of the diversion pipe 720, the rainwater flowing from the collection trough 710 is diverted, buffering the rainwater within the diversion pipe 720 and preventing it from impacting the existing traditional pitched roof 610, thus avoiding damage to the existing traditional pitched roof 610.

[0067] In practical applications, when using the diversion pipe 720 to divert rainwater from the collection trough 710, the arrangement of the water outlet holes for the barrel tiles and flat tiles on the existing traditional pitched roof 610 differs. Please refer to... Figure 11 and Figure 12 , Figure 11 This is a diagram illustrating the water outlet setting method for a corresponding cylindrical tile in an embodiment of the present invention. Figure 12 Figure 2 illustrates the water outlet configuration for the corresponding barrel tile in this embodiment of the invention. In this embodiment, the guide pipe 720 opens at the location of the barrel tile to form a water outlet. Water flowing from the outlet flows through the barrel tile to the flat tile and falls from the drip edge of the flat tile. Because the barrel tile in this embodiment is fixed to the bracket by countersunk fittings, and the bracket is fixed to the keel, rainwater flowing from the guide pipe 720 will not affect the service life of the barrel tile. Furthermore, the rainwater flows along the barrel tile to the flat tile, significantly reducing the impact force of the rainwater, thus ensuring the normal use of the existing traditional pitched roof 610.

[0068] Furthermore, considering the uniformity of water flow in the drip tiles of the existing traditional pitched roof 610, and to avoid a situation where the rainfall from the first few outlets is particularly large, causing the rainfall from the later outlets to gradually decrease, thus resulting in uneven dripping from each drip tile, please refer to [the relevant documentation / reference]. Figure 13 and Figure 14 , Figure 13 This is a diagram illustrating the arrangement of the water outlet holes for the cylindrical tile and the nozzles for the flat tile in an embodiment of the present invention. Figure 14 Figure 2 illustrates the arrangement of the water outlet holes for the cylindrical tiles and the sprinkler heads for the flat tiles in this embodiment of the invention. In this embodiment, sprinkler heads are added to the guide pipe 720 at the positions corresponding to the flat tiles. This results in different drainage methods for the cylindrical tiles and flat tiles in the guide pipe 720, effectively improving the uneven rainfall distribution from each water outlet hole.

[0069] Preferably, the second existing traditional pitched roof 410, the second pitched roof, and the third existing traditional pitched roof 610 all include multiple slopes. Rainwater from the second existing traditional pitched roof 410, which faces the second pitched roof, flows into the water collection trough 710. Rainwater in the guide pipe 720 is discharged to one slope of the third existing traditional pitched roof 610. The slope of the water collection trough 710 along its length is 2% ± 0.5%. This embodiment of the invention uses a slope for the water collection trough 710, which makes it easier for rainwater in the water collection trough 710 to flow into the guide pipe 720.

[0070] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The present invention provides a roof drainage system for the expansion of an existing building, wherein the length of the diversion pipe 720 extending to the third existing traditional pitched roof 610 is less than half the length of the third existing traditional pitched roof 610; the diversion pipe 720 extends to one end of the slope of the third existing traditional pitched roof 610 along the length direction; the amount of rainwater dripping from the end of the slope of the third existing traditional pitched roof 610 away from the newly built equal-level pitched roof along the length direction is greater than the amount of rainwater dripping from the other end of the slope of the third existing traditional pitched roof 610 away from the newly built equal-level pitched roof along the length direction.

[0071] This invention provides a drainage component for the expansion of existing buildings. Based on the roof drainage system for the expansion of existing buildings disclosed above, please continue reading. Figures 1 to 10 The drainage component of this invention includes:

[0072] The rainwater from the newly built raised pitched roof 210 is guided to X diversion units 310, where X ≥ 2, on the first existing traditional pitched roof 110 away from the slope of the newly built raised pitched roof 210. One side of the diversion unit 310 extends to the eaves of the newly built raised pitched roof 210, and the other side of the diversion unit 310 extends to the outer side of the ridge of the first existing traditional pitched roof 110.

[0073] X support units 320 are used to support the flow guiding unit 310. The support units 320 are located below the flow guiding unit 310. One side of the support unit 320 is fixed to the roof purlin of the newly built raised pitched roof 210, and the other side of the support unit 320 is fixed to the ridge of the first existing conventional pitched roof 110.

[0074] Y collection troughs 710, where Y≥1, are used to collect rainwater from newly constructed contoured roofs 510 and second existing traditional pitched roofs 410.

[0075] N*Y drainage pipes 720, where N≥1, are used to discharge rainwater from the newly constructed contoured roof 510 and the second existing traditional pitched roof 410 to the third existing traditional pitched roof 610. The drainage pipes 720 are connected to the water collection trough 710 and are located outside the rainwater of the newly constructed contoured roof 510 and the second existing traditional pitched roof 410. The drainage pipes 720 extend from the water collection trough 710 to the outside of the ridge of the third existing traditional pitched roof 610.

[0076] Please continue reading. Figure 7 and Figure 8 In a preferred embodiment of the invention, the drainage pipe 720 includes: a first drainage section perpendicular to the ridge of the second existing traditional pitched roof 410, and a second drainage section parallel to the ridge of the third existing traditional pitched roof 610; the first and second drainage sections are connected sequentially, and a plurality of water outlet holes are opened at the end of the second drainage section. In this embodiment, the first drainage section is perpendicular to the ridge of the second existing traditional pitched roof 410, and the second drainage section is parallel to the ridge of the third existing traditional pitched roof, allowing the traditional building to obscure the drainage pipe 720, so that the installation of the drainage pipe 720 does not affect the shape of the traditional building. Preferably, the water collection trough 710 is arranged parallel to the ridges of the second existing traditional pitched roof 410 and the second pitched roof. Preferably, a suspended ceiling is also provided below the water collection trough 710 to obscure the water collection trough 710; the suspended ceiling connects the first existing traditional building corresponding to the second existing traditional pitched roof 410 and the newly built traditional building corresponding to the second pitched roof.

[0077] This invention employs a water collection trough 710 and a guide pipe 720. Drainage holes are drilled at the ends of the guide pipe 720 to form drainage holes, using a diversion method to buffer rainwater. This protects the roof of the auxiliary building while simultaneously enabling drainage of the newly constructed traditional building in the middle. A ridge connector is designed to connect the ridge of the existing building to the extended purlins of the newly constructed traditional buildings on both sides. Glass plates are installed on the extended purlins, allowing rainwater to flow along the glass plates to the roof of another existing building, thus achieving roof drainage for the newly constructed traditional building. More specifically, this invention employs X drainage subsystems and Y second drainage subsystems 700 to discharge rainwater from the roof of the newly constructed traditional building to the slope of the existing traditional building's pitched roof, away from the newly constructed traditional building. This connects the drainage systems of the newly constructed and existing traditional buildings without affecting their aesthetic appearance or usability, ensuring that rainwater does not drip from the eaves of the adjacent pitched roofs of both buildings.

[0078] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

[0079] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0080] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A roof drainage system for the expansion of an existing building, characterized in that, include: The first drainage system comprises: X first drainage subsystems (300) located between X existing traditional buildings (100) and X newly built traditional buildings (200), where X ≥ 2; the X newly built traditional buildings (200) include X newly built raised pitched roofs (210), and the X existing traditional buildings (100) adjacent to the X newly built traditional buildings (200) include X existing traditional pitched roofs (110), wherein the X newly built raised pitched roofs (210) are all higher than the X existing traditional buildings (200). The first existing traditional pitched roof (110) is such that the first newly built traditional building (200) is higher than the first existing traditional building (100). The first drainage subsystem (300) extends from below the eaves of the newly built raised pitched roof (210) to the outside of the ridge of the first existing traditional pitched roof (110). The first drainage subsystem (300) guides the roof rainwater of the newly built raised pitched roof (210) to flow to the slope of the first existing traditional pitched roof (110) away from the slope of the newly built raised pitched roof (210). The second drainage system includes: Y second drainage subsystems (700), Y≥1; the second drainage subsystems (700) collect rainwater from the roofs of Y existing traditional buildings (400) and Y newly built traditional buildings (500) and divert the rainwater to Z existing traditional buildings (600), Z≥1; the second drainage subsystems (700) are located between the second existing traditional buildings (400), the second newly built traditional buildings (500) and the third existing traditional buildings (600), the Y newly built traditional buildings (500) include Y newly built equal-slope roofs (510), and the Y existing traditional buildings (500) are adjacent to the Y newly built traditional buildings (500). The traditional building (400) includes Y second existing traditional pitched roofs (410), and the Z third existing traditional buildings (600) adjacent to the Y second existing traditional buildings (400) include Z third existing traditional pitched roofs (610). The Y newly built equal-height pitched roofs (510) are all higher than the Y second existing traditional pitched roofs (410), and the Z third existing traditional pitched roofs (610) are lower than the newly built equal-height pitched roofs (510) and the second existing traditional pitched roofs (410), so that the roof rainwater collected by the second drainage subsystem (700) flows to the third existing traditional pitched roofs (610) away from the slope of the newly built equal-height pitched roofs.

2. The roof drainage system for the expansion of an existing building according to claim 1, characterized in that, Each of the first drainage subsystems (300) includes a flow guiding unit (310) and a support unit (320) for supporting the flow guiding unit (310), the flow guiding unit (310) being located above the support unit (320); One side of the flow guiding unit (310) extends to the eaves of the newly built raised pitched roof (210), and the other side of the flow guiding unit (310) extends to the outer side of the ridge of the first existing traditional pitched roof (110). One side of the support unit (320) is fixed to the roof purlin of the newly built raised pitched roof (210), and the other side of the support unit (320) is fixed to the ridge of the first existing conventional pitched roof (110).

3. The roof drainage system for the expansion of an existing building according to claim 2, characterized in that, The support unit (320) includes a plurality of support purlins arranged parallel to the roof purlins, and the plurality of support purlins are arranged sequentially along the length direction of the first newly built traditional building (200); Each supporting purlin extends from the end of the roof purlin toward the ridge of the first existing conventional pitched roof (110); Several ridge clips are fixed on the ridge of the first existing traditional pitched roof (110), and the ridge clips are fixedly connected to the supporting purlins; The flow guiding unit (310) is fixed to the support purlin.

4. A roof drainage system for the expansion of an existing building according to any one of claims 1-3, characterized in that, The first drainage subsystem (300) is aligned with the length direction of the first existing conventional pitched roof (110), so that the rainwater diverted by the first drainage subsystem (300) is evenly discharged to the slope of the first existing conventional pitched roof (110) away from the newly built raised pitched roof (210), so as to achieve that the rainwater on the slope is evenly dripped along the eaves.

5. The roof drainage system for the expansion of an existing building according to claim 1, characterized in that, The second drainage subsystem (700) includes: a water collection trough (710) for collecting rainwater from the newly built contoured roof (510) and the second existing conventional roof (410), and a drain pipe (720) for discharging rainwater from the newly built contoured roof (510) and the second existing conventional roof (410) from the third existing conventional roof (610); The guide pipe (720) is connected to the water collection trough (710). The guide pipe (720) is located outside the rainwater of the newly built equal-slope roof (510) and the second existing traditional pitched roof (410). The guide pipe (720) extends from the water collection trough (710) to the outside of the ridge of the third existing traditional pitched roof (610).

6. The roof drainage system for the expansion of an existing building according to claim 5, characterized in that, The water collection trough (710) is provided with the guide pipe (720) at both ends along its length, and the two guide pipes (720) guide the rainwater in the water collection trough (710) to the two existing traditional pitched roofs (610); Two third existing traditional buildings (600) are located on either side of the second existing traditional building (400).

7. A roof drainage system for the expansion of an existing building according to claim 5 or 6, characterized in that, The length of the guide pipe (720) extending to the third existing conventional pitched roof (610) is less than 1 / 2 of the length of the third existing conventional pitched roof (610); The guide pipe (720) extends to one end of the slope of the third existing conventional pitched roof (610) along the length direction; The amount of rainwater dripping from the end of the slope of the third existing traditional pitched roof (610) away from the newly built equal-elevation roof along the length direction is greater than the amount of rainwater dripping from the other end of the slope of the third existing traditional pitched roof (610) away from the newly built equal-elevation roof along the length direction.

8. A drainage component for an extension of an existing building, based on the roof drainage system for an extension of an existing building as described in any one of claims 1-7, characterized in that, The drainage components include: The rainwater from the newly built raised pitched roof (210) is guided to X diversion units (310) on the first existing traditional pitched roof (110) away from the slope of the newly built raised pitched roof (210), where X ≥ 2; one side of the diversion unit (310) extends to the eaves of the newly built raised pitched roof (210), and the other side of the diversion unit (310) extends to the outer side of the ridge of the first existing traditional pitched roof (110); X support units (320) for supporting the flow guiding unit (310), the support units (320) are located below the flow guiding unit (310), one side of the support unit (320) is fixed to the roof purlin of the newly built raised pitched roof (210), and the other side of the support unit (320) is fixed to the ridge of the first existing conventional pitched roof (110); Y collection troughs (710) are used to collect rainwater from newly built contoured roofs (510) and rainwater from the second existing traditional roof (410), where Y≥1; N*Y drainage pipes (720) are used to discharge rainwater from the newly built contoured roof (510) and the second existing traditional pitched roof (410) to the third existing traditional pitched roof (610), where N≥1; the drainage pipes (720) are connected to the water collection trough (710), and the drainage pipes (720) are located outside the rainwater of the newly built contoured roof (510) and the second existing traditional pitched roof (410), and the drainage pipes (720) extend from the water collection trough (710) to the outside of the ridge of the third existing traditional pitched roof (610).

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