Building roof waterproof structure and construction method thereof

Abstract

The application relates to the field of building waterproofing, in particular to a building roof waterproof structure and a construction method thereof, which comprises a water storage pool, a water storage assembly, a transmission assembly and a drainage assembly, and aims to solve the water treatment requirement at different rainfall times. Specifically, when the rainfall is light, the water storage pool is used for collecting rainwater. However, when the rainfall increases and causes the water level in the water storage pool to rise to a certain degree, the transmission assembly will start the water storage assembly to pump the rainwater in the water storage pool into the water storage tower, so as to prevent the roof structure from bearing the pressure of a large amount of accumulated water. The application has the effect of solving the problem that, in the prior art, when the rainfall is too large, the accumulated rainwater cannot be effectively and quickly drained, and the roof structure is severely damaged.

Description

Technical Field

[0001] This application relates to the field of building waterproofing, and in particular to a waterproofing structure for building roofs and its construction method. Background Technology

[0002] A building's roof waterproofing structure is a crucial component, primarily designed to protect the building's interior from rainwater, snowmelt, and other natural elements. Different types of buildings may have different roof structures, such as flat roofs, pitched roofs, and arched roofs. Each type of roof requires specific waterproofing methods. Common roof waterproofing methods include selecting waterproofing materials, choosing the right roof waterproofing layer, installing a roof drainage system, and regularly maintaining the roof.

[0003] If the roof waterproofing structure is not properly maintained or has problems, it can lead to a series of serious issues. These problems can not only damage the building's structure but also affect the indoor environment and living comfort. Common problems include leaks, structural damage, increased maintenance costs, decreased indoor energy efficiency, reduced indoor comfort, impacts on occupants' health, and a decrease in building value. Therefore, timely treatment and maintenance of the roof waterproofing structure are crucial to avoid these problems.

[0004] While roof waterproofing structures in related technologies can improve the waterproofing capabilities of building roofs to some extent, these structures can only provide waterproofing. When rainfall is heavy, they cannot effectively and quickly drain the accumulated rainwater, causing serious damage to the roof structure and severely affecting the living experience of residents. Summary of the Invention

[0005] In order to solve the problem in related technologies that when rainfall is too heavy, the accumulated rainwater cannot be effectively and quickly drained, causing serious damage to the roof structure, this application provides a waterproof roof structure and its construction method.

[0006] Firstly, the waterproofing structure for building roofs provided in this application adopts the following technical solution:

[0007] A waterproof structure for building roofs includes:

[0008] A water storage tank is installed on the roof of a building and is open-topped. The water storage tank is used to collect rainwater.

[0009] A water storage assembly, comprising a pump and a water storage tower, wherein the inlet pipe of the pump is located in the water storage tank and the outlet pipe of the pump is installed on the water storage tower. The collected rainwater enters through the inlet pipe, flows through the pump, exits through the outlet pipe and flows into the water storage tower.

[0010] A transmission assembly, the transmission assembly being used to control the opening and closing of the water storage assembly; and

[0011] A drainage assembly is installed on the water storage tower and is used to drain the rainwater collected in the water storage tower.

[0012] By adopting the above technical solution, a building roof waterproofing structure is configured as a combination of a water storage tank, a water storage component, a transmission component, and a drainage component. When rainfall is light, the water storage tank can collect rainwater. When rainfall is heavy, the rainwater in the water storage tank rises continuously. When it rises to a certain level, the transmission component will start the pump of the water storage component. The pump will pump the rainwater in the water storage tank into the water storage tower. Most of the rainwater is collected in the water storage tank and the water storage tower, reducing the possibility of a large amount of rainwater accumulating on the roof structure. When the rainfall continues, the drainage component will open as the water level in the water storage tower rises, thereby directly draining the water in the water storage tower from the roof. This application solves the problem in related technologies where the accumulated rainwater cannot be effectively and quickly drained when the rainfall is too heavy, causing serious damage to the roof structure.

[0013] Optionally, the transmission assembly includes a transmission plate and a transmission rod. The transmission plate is located inside the water storage tank and can float inside the water storage tank. One end of the transmission rod is fixedly connected to the transmission plate, and the other end of the transmission rod can abut against the switch of the water pump.

[0014] By adopting the above technical solution, the transmission component is set as a combination of transmission plate and transmission rod, so that the transmission component can effectively control the pump according to the rise of the water level in the reservoir, so that the pump will only pump the rainwater in the reservoir into the water tower when the rainfall is heavy.

[0015] Optionally, a limiting rod is also fixedly connected to the transmission plate, and a limiting groove is formed on the inner side wall of the water storage tank, allowing the limiting rod to slide within the limiting groove.

[0016] By adopting the above technical solution, the setting of the limiting rod and the limiting groove enables the transmission component to float only in the vertical direction, thereby improving the stability of the transmission component.

[0017] Optionally, the drainage assembly includes a drainage pipe that passes through the water storage tower. The water storage tower has a drainage hole, and the drainage pipe communicates with the drainage hole, allowing rainwater to flow from the drainage hole to the drainage pipe.

[0018] By adopting the above technical solution, the drainage components are set as drainage pipes, which can be directly passed through the parapet wall, so that the collected rainwater can be discharged from the roof in an organized manner, effectively reducing the possibility of rainwater accumulating on the roof.

[0019] Optionally, a sealing assembly is also provided at the drain hole. The sealing assembly is used to seal the drain hole. The sealing assembly includes a sealing ball, a buoyancy ball, and a connecting rope. The sealing ball blocks the drain hole, and the buoyancy ball is connected to the sealing ball through the connecting rope.

[0020] By adopting the above technical solution and setting the sealing components, the drainage components will only be activated to discharge rainwater when the rainfall is too heavy; otherwise, the rainwater can simply be collected in the storage tank and water tower.

[0021] Optionally, the volume of the blocking ball is equal to the volume of the buoyancy ball, and the density of the blocking ball is greater than the density of the buoyancy ball.

[0022] By adopting the above technical solution, the setting of the sealing ball and the buoyancy ball ensures that as the water level in the water storage tower rises, the buoyancy ball will experience a greater buoyancy than the sealing ball, thereby enabling the sealing component to better seal the drainage hole.

[0023] Optionally, the end of the sealing ball away from the connecting rope is also connected to a pull rope, which extends out of the drainage hole.

[0024] By adopting the above technical solution and the setting of the pull rope, when the sealing component needs to be reset, it is only necessary to pull the pull rope to block the sealing ball in the drainage hole.

[0025] Optionally, a magnetic ring is provided at the drainage hole, and the sealing ball is magnetized, with the sealing ball and the magnetic ring attracting each other.

[0026] By adopting the above technical solution, the magnetization treatment of the magnetic ring and the sealing ball enables the sealing component to more stably seal the drainage hole.

[0027] Optionally, a pull ring is fixedly connected to the end of the pull rope away from the sealing ball, and the diameter of the pull ring is larger than the diameter of the drainage hole.

[0028] By adopting the above technical solution, the pull ring design makes it easier to reset the sealing component.

[0029] Secondly, this application also provides a construction method, comprising the following steps:

[0030] B1. Provide steel bars, concrete, and formwork; on-site construction personnel will pour a water storage tank on the roof during the construction process.

[0031] B2. Provide water pumps and water storage towers; on-site construction personnel will install the water pumps and water storage towers.

[0032] B3. Provide drainage components, and the on-site construction personnel will install the drainage components on the water storage tower;

[0033] B4. Provide the transmission components. On-site construction personnel will install the transmission components in the water storage tank to complete the construction.

[0034] By adopting the above technical solution and setting four construction steps (B1, B2, B3, and B4), when constructing the building roof waterproofing structure of this application, on-site construction personnel only need to follow the four steps (B1, B2, B3, and B4) to quickly complete the construction of the building roof waterproofing structure of this application. The whole process is clear and the steps are well-defined, which can effectively improve the construction speed of the roof waterproofing structure.

[0035] In summary, this application includes at least one of the following beneficial technical effects:

[0036] 1. By configuring a building roof waterproofing structure of this application as a combination of a water storage tank, a water storage component, a transmission component, and a drainage component, when the rainfall is light, the water can be effectively collected in the water storage tank. When the rainfall is heavy, the transmission component will start a pump to pump the water in the water storage tank into a water storage tower. When the rainfall is extremely heavy, the drainage component will open as the water level in the water storage tower rises, thereby directly discharging the excess rainwater directly from the building roof. This application solves to some extent the problem in related technologies where the accumulated rainwater cannot be effectively and quickly discharged when the rainfall is too heavy, causing serious damage to the roof structure.

[0037] 2. The transmission assembly is set as a combination of transmission plate and transmission rod, so that the pump will only pump rainwater from the reservoir into the water tower when the rainfall is heavy. The sealing assembly is set as a combination of sealing ball, buoyancy ball and connecting rope, so that the drainage assembly will only be activated to discharge rainwater when the rainfall is too heavy. Otherwise, the rainwater can simply be collected in the reservoir and water tower.

[0038] 3. By setting up four construction steps (B1, B2, B3, and B4), the construction process of the building roof waterproofing structure of this application is clear and straightforward, and the steps are well-defined, which can effectively improve the construction speed of the roof waterproofing structure. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of a building roof waterproofing structure according to an embodiment of this application.

[0040] Figure 2 yes Figure 1 A magnified view of region A in the middle.

[0041] Figure 3 yes Figure 1 A magnified view of region B in the middle.

[0042] Figure 4 yes Figure 1 A schematic diagram of the overall structure from another perspective, concealing the cover plate of the water storage tower.

[0043] Figure 5 yes Figure 4 A schematic diagram of the overall structure from another perspective.

[0044] Figure 6 yes Figure 5 A magnified view of region C in the middle.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Water storage tank; 2. Water storage assembly; 21. Water pump; 22. Water storage tower; 3. Transmission assembly; 31. Transmission plate; 32. Transmission rod; 4. Drainage assembly; 41. Drainage pipe; 5. Limiting rod; 6. Limiting groove; 7. Drainage hole; 8. Sealing assembly; 81. Sealing ball; 82. Buoyancy ball; 83. Connecting rope; 9. Pull rope; 10. Pull ring. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0048] This application discloses a waterproof structure for building roofs and its construction method.

[0049] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] It should also be noted that the building roof waterproofing structure of this application is mainly used for accessible roofs. Furthermore, this roof waterproofing structure serves primarily as an auxiliary waterproofing measure and cannot completely replace the existing drainage channels, downpipes, and other structures on the building roof itself. Specifically, the building roof waterproofing structure of this application mainly aims to reduce the accumulation of rainwater on the roof slabs when rainfall is excessive, thereby affecting the building's structural components. Simultaneously, when rainwater is collected on the roof surface, it acts as a load on the roof. Therefore, in the embodiments of this application, the structure of the floor slabs needs to be appropriately strengthened. Whether this involves increasing the cross-section of beams, slabs, and columns, or appropriately increasing the concrete grade, these are relatively conventional methods for those skilled in the art and should not be construed as limiting the invention.

[0051] Firstly, this application provides a waterproof structure for building roofs:

[0052] Reference Figure 1 and Figure 2 A waterproof roof structure includes a water storage tank 1, a water storage component 2, a transmission component 3, and a drainage component 4, designed to address water treatment needs during varying rainfall periods. Specifically, when rainfall is light, the water storage tank 1 collects rainwater. However, when rainfall increases and the water level in the water storage tank 1 rises to a certain level, the transmission component 3 activates the water storage component 2, pumping the rainwater from the water storage tank 1 into a water storage tower 22 to prevent the roof structure from bearing the pressure of a large amount of accumulated water. This application, to some extent, solves the problem in related technologies where, when rainfall is excessive, the accumulated rainwater cannot be effectively and quickly drained, causing severe damage to the roof structure.

[0053] In this embodiment, the water storage tank 1 is installed on the roof of the building. The water storage tank 1 is open and used to collect rainwater. Specifically, the water storage tank 1 is located on the roof away from the drainage ditch. At the same time, the water storage tank 1 also needs to make way for a place for people to walk. That is to say, in this embodiment, multiple water storage tanks 1 are installed on the roof of a building, and the corresponding water storage components 2, transmission components 3, and drainage components 4 also need to be installed in corresponding quantities.

[0054] The installation of the water storage tank 1 allows it to collect rainwater from the building roof when rainfall is low, thus preventing rainwater from accumulating on the roof and damaging the roof slab.

[0055] Whether rainwater can easily build up the concrete of a roof depends on the location of the building. If the rainwater in the area contains acidic substances such as sulfuric acid and nitric acid, these substances can combine with the calcium in the concrete, causing a chemical reaction that dissolves the concrete. This is one of the reasons why the top floor of a building is prone to leaks.

[0056] Meanwhile, in this embodiment, the water storage tank 1 is square. In other embodiments, the water storage tank 1 can also be circular or other irregular shapes, all of which are embodiments that can be implemented in this application.

[0057] In this embodiment, the water storage component 2 includes a pump 21 and a water storage tower 22. The inlet pipe of the pump 21 is located inside the water storage tank 1, and the outlet pipe of the pump 21 passes through the water storage tower 22. The collected rainwater enters through the inlet pipe, flows through the pump 21, exits through the outlet pipe, and flows into the water storage tower 22. It should be noted that the inlet and outlet pipes are shown in the accompanying drawings of this embodiment, and it can be seen that the inlet pipe is also bent in its natural state. This is because both the inlet and outlet pipes in this embodiment are made of rigid water pipes, thereby ensuring that the pump 21 can pump water normally.

[0058] In this embodiment, the pump 21 and the water storage tower 22 are specifically equipped with a placement platform. The placement platform is not marked in the accompanying drawings of this embodiment. The placement platform has two advantages: firstly, it facilitates installation and disassembly; secondly, it separates the pump 21, water storage tower 22, and water storage tank 1, reducing the possibility of long-term rainwater erosion of the bottom of the pump 21 and water storage tower 22, and also ensuring the stability of the water storage assembly 2.

[0059] It should be noted that, regarding how the water pump 21 is powered, whether it is by pre-burying power supply lines on the building roof or by using a portable or rechargeable water pump 21, these are all fairly conventional methods for those skilled in the art.

[0060] Reference Figure 2 and Figure 3 In this embodiment, the transmission assembly 3 is used to control the opening and closing of the water storage assembly 2. Specifically, the transmission assembly 3 includes a transmission plate 31 and a transmission rod 32. The transmission plate 31 is located inside the water storage tank 1 and can float within the water storage tank 1. One end of the transmission rod 32 is fixedly connected to the transmission plate 31, and the other end of the transmission rod 32 can abut against the switch of the water pump 21. The switch of the water pump 21 is a lever switch, meaning that the water pump 21 will only start when a certain pressure is applied to the switch.

[0061] As for how the transmission rod 32 comes into contact with the switch of the water pump 21, it is because the platform is provided with a clearance hole for the transmission rod 32 to pass through, so that the transmission rod 32 can pass through the clearance hole to contact the switch.

[0062] The transmission assembly 3 is configured as a combination of a transmission plate 31 and a transmission rod 32, so that the transmission assembly 3 can effectively control the pump 21 according to the rise of the water level in the reservoir 1. Specifically, since the water in the reservoir 1 is constantly rising, the transmission plate 31 will be driven by the buoyancy of the water to float the transmission rod 32. When it floats to a certain height, the transmission rod 32 passes through the clearance hole and abuts against the switch of the pump 21. The configuration of the transmission assembly 3 ensures that the pump 21 will only pump rainwater from the reservoir 1 into the water storage tower 22 when the rainfall is heavy.

[0063] In this embodiment of the application, in order to enable the transmission rod 32 to accurately abut against the switch of the water pump 21, a limiting rod 5 is also fixedly connected to the transmission plate 31, and a limiting groove 6 is opened on the inner side wall of the water storage tank 1, so that the limiting rod 5 can slide in the limiting groove 6.

[0064] The setting of the limiting rod 5 and the limiting groove 6 allows the transmission component 3 to float only in the vertical direction, thereby enabling the rotating rod to accurately start the pump 21 and improving the stability of the transmission component 3.

[0065] In this embodiment, a single transmission plate 31 and a single transmission rod 32 are provided. In other embodiments, multiple transmission rods 32 can be provided, which allows the transmission assembly 3 to simultaneously start multiple water pumps 21, which is also an embodiment that can be implemented in this application.

[0066] Reference Figure 3 and Figure 4 The drainage component 4 is installed on the water storage tower 22 and is used to drain the rainwater collected in the water storage tower 22.

[0067] In this embodiment, the drainage component 4 includes a drainage pipe 41, which passes through a water storage tower 22. The water storage tower 22 has drainage holes 7, and the drainage pipe 41 communicates with the drainage holes 7, allowing rainwater to flow from the drainage holes 7 to the drainage pipe 41. The height of the drainage pipe 41 is determined based on the average rainfall of the area where the building is located. In areas with high rainfall, the drainage pipe 41 can be installed lower, while in areas with low rainfall, it can be installed higher. This is because rainwater is a valuable resource in areas with low rainfall, and it can be collected in the water storage tower 22 for other uses during sunny or hot weather, such as for roof spraying for cooling.

[0068] By setting the drainage component 4 as a drainage pipe 41, the drainage pipe 41 can be directly passed through the parapet wall, so that the collected rainwater can be discharged from the roof in an organized manner, effectively reducing the possibility of rainwater accumulating on the roof.

[0069] In this application, a sealing component 8 is also provided at the drain hole 7. The sealing component 8 is used to seal the drain hole 7. The sealing component 8 includes a sealing ball 81, a buoyancy ball 82 and a connecting rope 83. The sealing ball 81 is used to block the drain hole 7, and the buoyancy ball 82 is connected to the sealing ball 81 by the connecting rope 83.

[0070] Reference Figure 5 and Figure 6 The sealing component 8 is designed so that the drainage component 4 will only be activated to drain rainwater when the rainfall is excessive; otherwise, the rainwater can simply be collected in the storage tank 1 and the storage tower 22. Specifically, when the rainfall is excessive, the buoyancy ball 82 will rise with the water level in the storage tower 22 due to the buoyancy of the water. When the water level in the storage tower 22 reaches a certain limit, the buoyancy ball 82, under the action of the connecting rope 83, will cause the sealing ball 81 to disengage from the drain hole 7, thereby releasing the blockage of the drain hole 7 and further achieving the effect of draining excess rainwater.

[0071] In this embodiment, the volume of the blocking ball 81 is equal to the volume of the buoyancy ball 82, and the density of the blocking ball 81 is greater than the density of the buoyancy ball 82. In other embodiments, the densities of the blocking ball 81 and the buoyancy ball 82 may be set to be the same, and the volume of the buoyancy ball 82 may be greater than that of the blocking ball 81; this is also a preferred embodiment of this application.

[0072] In this embodiment, a magnetic ring is provided at the drain hole 7, and the sealing ball 81 is magnetized. The sealing ball 81 and the magnetic ring attract each other. It should be noted that, for ease of explanation, the magnetic ring is not shown in the accompanying drawings of this embodiment. In other embodiments, the sealing ball 81 can also be configured to have an interference fit with the drain hole 7, which is also an embodiment that can be implemented in this application.

[0073] The magnetization treatment of the magnetic ring and the sealing ball 81 enables the sealing assembly 8 to more stably seal the drain hole 7.

[0074] The arrangement of the sealing ball 81 and the buoyancy ball 82 ensures that as the water level in the water storage tower 22 rises, the buoyancy ball 82 will experience a greater buoyancy than the sealing ball 81, thereby enabling the sealing assembly 8 to better seal the drain hole 7.

[0075] Referring to the figure, the end of the sealing ball 81 away from the connecting rope 83 is also connected to a pull rope 9, which passes through the drain hole 7.

[0076] The pull rope 9 is designed so that when the sealing component 8 needs to be reset, simply pull the pull rope 9 to block the sealing ball 81 in the drain hole 7.

[0077] Referring to the figure, a pull ring 10 is fixedly connected to the end of the pull rope 9 away from the sealing ball 81. The diameter of the pull ring 10 is larger than the diameter of the drain hole 7.

[0078] The pull ring 10 makes it easier for staff to pull the tensioner, which in turn makes it easier to reset the sealing component 8.

[0079] The implementation principle of the waterproof structure and construction method for a building roof in this application embodiment is as follows: a waterproof structure for a building roof is configured as a combination of a water storage tank 1, a water storage component 2, a transmission component 3, and a drainage component 4. When the rainfall is light, the water storage tank 1 can collect rainwater. When the rainfall is heavy, the rainwater in the water storage tank 1 rises continuously. When it rises to a certain level, the transmission component 3 will start the pump 21 of the water storage component 2. The pump 21 will pump the rainwater in the water storage tank 1 into the water storage tower 22. Most of the rainwater is collected in the water storage tank 1 and the water storage tower 22, reducing the possibility of a large amount of rainwater accumulating on the roof structure. When the rainfall continues, the drainage component 4 will open as the water level in the water storage tower 22 rises, thereby directly draining the water in the water storage tower 22 from the roof. This application solves the problem in related technologies that when the rainfall is too heavy, the accumulated rainwater cannot be effectively and quickly drained, causing serious damage to the roof structure.

[0080] Secondly, referring to Figure 1-6 This application also provides a construction method, comprising the following steps:

[0081] B1. Provide steel bars, concrete, and formwork. On-site construction personnel will pour water storage tank 1 on the roof during the construction process.

[0082] In B1, the arrangement of reinforcing bars, concrete, and formwork needs to be designed and constructed according to the actual environment of the building roof. This is common knowledge to those skilled in the art, so it will not be elaborated on in the embodiments of this application.

[0083] B2. Provide water pump 21 and water storage tower 22, and have on-site construction personnel install water pump 21 and water storage tower 22.

[0084] In B2, the existing rechargeable pump 21 is selected, and the water tower 22 is prefabricated in the factory. Both the pump 21 and the water tower 22 only need to be transported to the construction site for direct installation.

[0085] B3. Provide drainage component 4. On-site construction personnel will install drainage component 4 on water storage tower 22.

[0086] B4. Provide transmission component 3. On-site construction personnel will install transmission component 3 in the water storage tank 1 to complete the construction.

[0087] By setting up four construction steps (B1, B2, B3, and B4), when constructing the building roof waterproofing structure of this application, on-site construction personnel only need to follow these four steps to quickly complete the construction of the building roof waterproofing structure of this application. The entire process is clear and straightforward, and the steps are well-defined, which can effectively improve the construction speed of the roof waterproofing structure.

[0088] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof structure for building roofs, characterized in that, include: A water storage tank (1) is installed on the roof of a building. The water storage tank (1) is open and is used to collect rainwater. The water storage component (2) includes a pump (21) and a water storage tower (22). The inlet pipe of the pump (21) is located in the water storage tank (1), and the outlet pipe of the pump (21) is installed on the water storage tower (22). The collected rainwater enters through the inlet pipe, flows through the pump (21), exits through the outlet pipe, and flows into the water storage tower (22). Transmission assembly (3), said transmission assembly (3) being used to control the opening and closing of said water storage assembly (2); and Drainage assembly (4), which is installed on the water storage tower (22), is used to drain the rainwater collected in the water storage tower (22); The drainage component (4) includes a drainage pipe (41), which is installed on the water storage tower (22). The water storage tower (22) has a drainage hole (7), and the drainage pipe (41) is connected to the drainage hole (7). Rainwater flows from the drainage hole (7) to the drainage pipe (41). A sealing component (8) is also provided at the drain hole (7). The sealing component (8) is used to seal the drain hole (7). The sealing component (8) includes a sealing ball (81), a buoyancy ball (82), and a connecting rope (83). The sealing ball (81) blocks the drain hole (7), and the buoyancy ball (82) is connected to the sealing ball (81) through the connecting rope (83).

2. The waterproof structure for building roofs according to claim 1, characterized in that, The transmission assembly (3) includes a transmission plate (31) and a transmission rod (32). The transmission plate (31) is located inside the water storage tank (1) and can float inside the water storage tank (1). One end of the transmission rod (32) is fixedly connected to the transmission plate (31), and the other end of the transmission rod (32) can abut against the switch of the water pump (21).

3. The waterproof structure for building roofs according to claim 2, characterized in that, A limiting rod (5) is also fixedly connected to the transmission plate (31), and a limiting groove (6) is opened on the inner side wall of the water storage tank (1). The limiting rod (5) can slide in the limiting groove (6).

4. The waterproof structure for building roofs according to claim 1, characterized in that, The volume of the blocking ball (81) is equal to the volume of the buoyancy ball (82), and the density of the blocking ball (81) is greater than the density of the buoyancy ball (82).

5. A waterproof roof structure according to claim 4, characterized in that, The end of the sealing ball (81) away from the connecting rope (83) is also connected to a pull rope (9), which passes through the drain hole (7).

6. A waterproof structure for building roofs according to claim 5, characterized in that, A magnetic ring is provided at the drainage hole (7), and the sealing ball (81) is magnetized. The sealing ball (81) and the magnetic ring attract each other.

7. A waterproof roof structure according to claim 5, characterized in that, The end of the pull rope (9) away from the sealing ball (81) is fixedly connected to a pull ring (10), the diameter of which is larger than the diameter of the drain hole (7).

8. A construction method applied to a building roof waterproofing structure as described in any one of claims 1-7, characterized in that, Includes the following steps: B1. Provide steel bars, concrete, and formwork. On-site construction personnel will pour a water storage tank on the roof during the construction process (1). B2. Provide a water pump (21) and a water storage tower (22), and the on-site construction personnel shall install the water pump (21) and the water storage tower (22). B3. Provide drainage components (4), and the on-site construction personnel will install the drainage components (4) on the water storage tower (22); B4. Provide transmission components (3). On-site construction personnel will install transmission components (3) in the water storage tank (1) to complete the construction.

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