Siphon pipeline drainage device
By utilizing the siphon principle and water level sensor control through the siphon pipe drainage device, the problem of rainwater leakage caused by the inability of roof gutters to drain water in time during heavy rain is solved, and rainwater is discharged in a timely manner.
Patent Information
- Application Number
- CN202423155038.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The roof gutters of a building cannot drain water in time during heavy rain, causing rainwater to overflow and resulting in leaks inside the building.
The system employs a siphon drainage system, which includes a siphon pipe, a water collection trough, a drain pipe, a suction pipe, an electric valve, and a three-way valve. It utilizes the siphon principle and a water level sensor to control the opening and closing of the siphon pipe, enabling timely drainage of accumulated water in the gutter during periods of heavy rainfall.
It effectively solves the problem of building leaks when the gutters are full, ensuring that rainwater is drained in time and preventing leaks inside the building.
Smart Images
Figure CN223738851U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage technology, and in particular to a siphon pipe drainage device. Background Technology
[0002] With the increasing breadth and diversification of building design and applications, more and more building structural designs need to meet the requirements of equipment and processes within the building. When the building area is large, the roof drainage is often designed as an internal gutter structure. In recent years, due to the influence of typhoons, heavy rains during the rainy season in northern regions can cause rainwater to overflow from the internal gutters, leading to leaks inside the building. Therefore, the drainage of internal roof gutters has become a new research direction. Under normal circumstances, rainwater in the internal gutters is discharged to the outside through the drain pipes at the bottom of the gutter. Due to the special structure of internal gutters, unlike external gutters, overflow outlets cannot be made on the sides of the internal gutter to allow rainwater to drain out. When heavy rain occurs, the rainwater level in the internal gutter overflows instantly, causing rainwater to overflow from the top of the gutter, resulting in leaks inside the building. Therefore, there is an urgent need for a siphonic drainage system that can promptly drain the accumulated water in the gutter during heavy rainfall to solve the problem of leaks when the gutter is full. Utility Model Content
[0003] Therefore, it is necessary to provide a siphon pipe drainage device that can promptly drain the water accumulated in the gutter when there is heavy rainfall, thus solving the problem of building leakage when the gutter is full.
[0004] This application provides a siphon pipe drainage device, including a building, a gutter, and a siphon device. The gutter is located on the roof of the building. The siphon device includes a siphon pipe, a water collection trough, a drain pipe, a suction pipe, an electric valve, and a three-way valve. The drain pipe is connected to the bottom of the water collection trough. The suction pipe extends into the gutter. The height of the water collection trough is higher than that of the gutter. The height of the outlet end of the siphon pipe is lower than that of the gutter. The inlet end of the siphon pipe is connected to the suction pipe and the drain pipe through the three-way valve. The electric valve is provided on the siphon pipe.
[0005] In the siphonic drainage device provided in this application, during the water storage state, the siphon device can discharge water from the collection tank downwards through the siphon pipe. A three-way valve isolates the siphon pipe and the suction pipe, while the siphon pipe remains connected to the collection tank and the inlet end of the siphon pipe is connected to the drain pipe. The electric valve is in the closed state, allowing rainwater collected in the collection tank to flow into the siphon pipe, filling the entire siphon pipe. During the drainage state, the siphon device uses siphon action to draw water from the gutter towards the suction pipe. The suction pipe and the siphon pipe are connected, and the water flow direction is from the suction pipe towards the inlet end of the siphon pipe. The water in the gutter is then discharged through the suction pipe to the siphon pipe and finally to the outside. Through the coordination of the various structures within the siphon device, the siphon action can be used to promptly drain accumulated water from the gutter during heavy rainfall, solving the problem of building leakage when the gutter is full.
[0006] In one embodiment, an overflow pipe is connected to one side of the drain pipe, and the outlet of the overflow pipe is located above the gutter.
[0007] In one embodiment, the outlet end of the overflow pipe is vertically exposed upwards.
[0008] In one embodiment, the siphon tube includes an extension section and a vertical section connected together. The extension section is connected to the suction pipe and the drain pipe through the three-way valve. The end of the vertical section away from the extension section is the outlet end, and the vertical section is bent relative to the extension section.
[0009] In one embodiment, the extension is horizontally positioned and a water level sensor is provided in the extension.
[0010] In one embodiment, the water level sensor is located at the top of the extension.
[0011] In one embodiment, the height of the electric valve is lower than the gutter, and the height of the three-way valve is higher than the gutter.
[0012] In one embodiment, the extension section may be provided with multiple water suction pipes.
[0013] In one embodiment, the water collection trough has a water inlet that is vertically exposed upwards to collect rainwater.
[0014] In one embodiment, the gutter is horizontally positioned on the roof of the building. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0016] Figure 1 This is a structural diagram of a building with an internal gutter in the prior art;
[0017] Figure 2 This is a schematic diagram of the structure of a siphon pipe drainage device provided in an embodiment of this application;
[0018] Figure 3 A schematic diagram of the water storage state of a siphon pipe drainage device provided in an embodiment of this application;
[0019] Figure 4 This is a structural schematic diagram of the drainage state of a siphon pipe drainage device provided in an embodiment of this application.
[0020] Reference numerals: 10. Siphon drainage device; 20. Building; 30. Gutter; 40. Siphon device; 41. Siphon pipe; 411. Extension section; 412. Vertical section; 42. Water collection trough; 421. Drain pipe; 43. Suction pipe; 44. Electric valve; 45. Three-way valve; 46. Water level sensor; 50. Overflow pipe; 60. Detailed Implementation
[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] With the increasing breadth and diversification of building design and applications, more and more building structural designs need to meet the requirements of equipment and processes within the building. When the building area is large, the roof drainage is often designed as an internal gutter structure. In recent years, due to the influence of typhoons, heavy rains during the rainy season in northern regions can cause rainwater to overflow from the internal gutters, leading to leaks inside the building, such as in workshops or large warehouses. Therefore, the drainage of internal roof gutters has become a new research direction.
[0026] See Figure 1 , Figure 1 This diagram illustrates the structure of a building with an internal gutter in the prior art. Under normal circumstances, rainwater from the internal gutter on the building's roof is drained to the outside through the drainpipe at the bottom of the gutter. Due to the unique structure of the internal gutter, unlike the external gutter, it is impossible to create an overflow outlet on the side of the internal gutter to allow rainwater to drain out. When heavy rain occurs, the rainwater level in the internal gutter overflows instantly, causing rainwater to spill over from the top edge of the gutter, resulting in leaks inside the building. The existing technology has significant problems. For example, during the rainy season, heavy rainfall can overwhelm the drainpipe in the gutter, leading to overflow and leaks into the building. Furthermore, the unique structure of the internal gutter prevents the addition of overflow outlets on its side. Therefore, there is an urgent need for a siphonic drainage system that can promptly drain the accumulated water from the gutter during heavy rainfall to solve the problem of leaks when the gutter is full.
[0027] refer to Figure 2 , Figure 3 and Figure 4 , Figure 2 This is a schematic diagram of the structure of a siphon pipe drainage device 10 provided in one embodiment of this application. Figure 3 This is a schematic diagram of the siphon pipe drainage device 10 in a water storage state according to an embodiment of this application. Figure 4This is a structural schematic diagram of the drainage state of the siphon pipe drainage device 10 provided in an embodiment of this application. To solve the above problems, this application provides a siphon pipe drainage device 10, including a building 20, a gutter 30, and a siphon device 40. The gutter 30 is located on the roof of the building 20. The siphon device 40 includes a siphon pipe 41, a water collection trough 42, a drain pipe 43, a suction pipe 44, an electric valve 45, and a three-way valve 46. The drain pipe 43 is connected to the bottom of the water collection trough 42. The suction pipe 44 extends into the gutter 30. The height of the water collection trough 42 is higher than that of the gutter 30. The height of the outlet end of the siphon pipe 41 is lower than that of the gutter 30. The inlet end of the siphon pipe 41 is connected to the suction pipe 44 and the drain pipe 43 through the three-way valve 46. The siphon pipe 41 is equipped with an electric valve 45.
[0028] See Figure 2 and Figure 3 The siphonic drainage system 10 includes a building 20, a gutter 30, and a siphon device 40. The building 20 typically houses the necessary workshops, machinery, equipment, and tools for production. The gutter 30 is installed on the roof of the building 20, specifically, it can be horizontally installed. The gutter 30 is a recessed section between two spans of the roof of the building 20, primarily used in an organized drainage system to guide rainwater to rainwater pipes and discharge it from the building 20. The gutter 30 collects rainwater through a specific design. Common materials for the gutter 30 include sheet metal, asbestos cement, copper, colored aluminum, polyvinyl chloride (PVC), and stainless steel. Among these, PVC and aluminum alloys are widely used due to their moderate price, ease of installation, and corrosion resistance. The siphon device 40 plays a drainage role in the siphonic drainage system 10, cleverly utilizing the siphon principle—the difference between liquid pressure and atmospheric pressure—to achieve automatic liquid flow. Specifically, when the water level on the inlet side is higher than that on the outlet side, the pressure is greater where the water level is higher. Under the pressure difference, the liquid flows through the siphon pipe 41 to the lower water level, effectively solving the problem of rain leakage in the building 20 when the gutter 30 is full. Specifically, the siphon device 40 includes a siphon pipe 41, a water collection trough 42, a drain pipe 43, a suction pipe 44, an electric valve 45, and a three-way valve 46. The water collection trough 42 collects rainwater, and the drain pipe 43 is connected to the bottom of the water collection trough 42. The water accumulated in the water collection trough 42 can flow into the siphon pipe 41 through the drain pipe 43. The suction pipe 44 extends into the gutter 30, and one end of the suction pipe 44 is connected to the siphon pipe 41. A three-way valve 46 is provided on the side of the suction pipe 44 that connects to the siphon pipe 41, and the three-way valve 46 can control whether the suction pipe 44 and the siphon pipe 41 are connected.
[0029] See Figure 2 , Figure 3 and Figure 4In some embodiments, the height of the water collection trough 42 is higher than that of the gutter 30, and there is a certain height difference between the two. This ensures that when the three-way valve 46 is adjusted to connect the siphon pipe 41 and the gutter 30, the water accumulated in the water collection trough 42 can flow into the gutter 30, thus realizing the function of the gutter 30 in collecting rainwater. The height of the outlet end of the siphon pipe 41 is lower than that of the gutter 30, satisfying the siphon principle. That is, when the water level on the inlet side is higher than that on the outlet side, the liquid flows through the siphon pipe 41 to the lower water level due to the higher pressure at the higher water level. In some embodiments, multiple siphon pipes 41 can be installed according to the drainage volume requirements, and siphon pipes 41 with different diameters can be selected according to the requirements. For example, by increasing the diameter of the siphon pipe 41, the drainage volume can be increased, thereby improving the drainage effect of the siphon pipe drainage device 10. In some embodiments, the inlet end of the siphon pipe 41 is connected to the suction pipe 44 and the drain pipe 43 via a three-way valve 46. The three-way valve 46 is a control component of a fluid transport system, possessing functions such as shut-off, regulation, flow guidance, backflow prevention, pressure stabilization, diversion, or overflow. The design of the three-way valve 46 allows it to change the flow direction of the medium. It typically has three inlets and outlets connected to the pipeline, essentially combining two single-seat valves into one unit. Based on its operating method, the three-way valve 46 can be classified as a confluence valve or a diversion valve. A confluence valve has two inlets, and after merging, the medium flows out from one outlet; a diversion valve has one inlet, and after diversion, the medium flows out from two outlets. The three-way valve 46 controls the flow direction of the medium by changing the position of the valve core. When the valve is open, the medium can enter from inlet A and flow out through outlet B; when bypass medium inflow is required, the actuator is activated, the valve core reverses, and the medium enters from inlet A and flows out from outlet C; when bypass medium inflow is not required, the valve closes to cut off the medium. The three-way valve 46 can connect or block the inlet end of the siphon pipe 41 from the suction pipe 44. (See reference...) Figure 4 When the siphon pipe 41 draws water upward from the gutter 30 through siphon action, the suction pipe 44 and the siphon pipe 41 are connected, and the water flow direction is from the suction pipe 44 to the inlet end of the siphon pipe 41. At the same time, the suction pipe 44 and the drain pipe 43 are blocked. See reference. Figure 3When water in the collection tank 42 needs to be drained downwards through the siphon pipe 41, the three-way valve 46 blocks the siphon pipe 41 and the suction pipe 44, connecting the inlet end of the siphon pipe 41 to the drain pipe 43. This is the water storage state of the siphon pipe drainage device 10 provided in one embodiment of this application. The electric valve 45 is in the closed state, and the three-way valve 46 is in the state where the siphon pipe 41 is connected to the collection tank 42 and closed to the suction pipe 44. Rainwater collected in the collection tank 42 flows into the siphon pipe 41, filling the entire siphon pipe 41 with water. In some embodiments, an electric three-way valve 46 can be used. The electric three-way valve 46 can automatically regulate and control the fluid medium in the process pipeline by receiving control signals from the regulating instrument. The electric three-way valve 46 is usually composed of a linear electronic electric actuator and a cylindrical thin-walled window-shaped valve core, which has the advantages of compact structure, light weight, sensitive action, and accurate flow characteristics. In some embodiments, an electric valve 45 is provided on the siphon pipe 41. The height of the electric valve 45 is lower than that of the gutter 30. The electric valve 45 can be located at the end of the siphon pipe 41 on the side of the gutter 30. The electric valve 45 controls the valve opening and closing through an electric actuator. The electric valve 45 can adjust the end of the siphon pipe 41 on the side of the gutter 30 to be closed or opened. In the water storage state, the electric valve 45 can be closed. In the drainage state, the electric valve 45 can be opened so that the accumulated water can be discharged to the outside through the end of the siphon pipe 41.
[0030] See Figure 2 , Figure 3 and Figure 4 In some embodiments, a water level sensor 50 is also included. The water level sensor 50 is located in the siphon tube 41. The water level sensor 50 can convert the water level parameter in the siphon tube 41 into a corresponding electrical signal in real time. Its working principle is that the water level signal sensed by the sensor is transmitted to the controller. The computer in the controller compares the measured water level signal with the set signal, calculates the deviation, and issues opening and closing commands to the water supply electric valve 45 according to the nature of the deviation to ensure that the container reaches the set water level. When the water level sensor 50 detects water inside the pipe, it means that the siphon tube 41 is full of water. The water level sensor 50 can control the electric valve 45 to be in the open state through the control system, and control the state of the three-way valve 46 so that the siphon tube 41 is connected to the inlet water pipe 44 and in the closed state with the water collection tank 42.
[0031] See Figure 2 , Figure 3 and Figure 4In some embodiments, an overflow pipe 60 is connected to one side of the drain pipe 43. The overflow pipe 60 can maintain a certain liquid level and quickly discharge excess rainwater. Specifically, the overflow pipe 60 is connected to a water collection trough 42, which is located above the overflow pipe 60. The outlet of the overflow pipe 60 is located above the gutter 30. Excess water in the overflow pipe 60 will flow into the gutter 30, so that the rainwater in the water collection trough 42 can be discharged into the gutter 30 through the overflow port at the bottom of the water collection trough 42. The outlet end of the overflow pipe 60 is vertically exposed upwards. In the drainage state, the three-way valve 46 adjusts the siphon pipe 41 and the drain pipe 43 to be in the closed state. At this time, the overflow pipe 60 and the suction pipe 44 form a communicating vessel structure. According to the principle of communicating vessels, that is, when the acceleration due to gravity is not equal to zero, the liquid of the same density in the communicating vessel will remain at the same level when it is at rest. In other words, at this time, the water level of the overflow pipe 60 is the same as the water level of the suction pipe 44.
[0032] See Figure 2 , Figure 3 and Figure 4 In some embodiments, the siphon pipe 41 includes an extension section 411 and a vertical section 412 connected together. The extension section 411 is connected to the suction pipe 44 and the drain pipe 43 via a three-way valve 46. The end of the vertical section 412 of the siphon pipe 41 away from the extension section 411 is the outlet end, and the vertical section 412 is bent relative to the extension section 411. The extension section 411 is horizontally arranged, and a water level sensor 50 is provided in the extension section 411. Specifically, the water level sensor 50 is located at the top of the extension section 411. For example, in the water storage state, the siphon device 40 can discharge the water in the water collection tank 42 downward through the siphon pipe 41. Specifically, the water in the water collection tank 42 passes sequentially through the extension section 411 and the vertical section 412 of the siphon pipe 41, at which time the electric valve 45 is in the closed state. The extension section 411 of the siphon pipe 41 and the suction pipe 44 are blocked by the three-way valve 46. The extension section 411 of the siphon pipe 41 is connected to the water collection tank 42. The water inlet of the siphon pipe 41 is connected to the drain pipe 43. The rainwater collected by the water collection tank 42 flows into the extension section 411 and the vertical section 412 of the siphon pipe 41 in sequence, filling the entire siphon pipe 41 with water. In the drainage state, the three-way valve 46 adjusts the part of the extension section 411 of the siphon pipe 41 and the drain pipe 43 to be in a closed state. At this time, the overflow pipe 60 and the suction pipe 44 form a communicating vessel structure. The water level of the overflow pipe 60 is the same as the water level of the suction pipe 44. When the electric valve 45 is in the open state, it draws water from the gutter 30 to the suction pipe 44 through the siphon effect. The suction pipe 44 and the siphon pipe 41 are connected, and the water flows from the suction pipe 44 to the inlet end of the siphon pipe 41. The water in the gutter 30 then flows through the suction pipe 44, through the extension section 411 of the siphon pipe 41, and the vertical section 412 of the siphon pipe 41, and is then discharged to the outside.
[0033] See Figure 2 , Figure 3 and Figure 4 In some embodiments, the height of the three-way valve 46 is higher than that of the gutter 30. The height of the three-way valve 46 is the same as that of the extension section 411 of the siphon pipe 41. Therefore, the height of the extension section 411 of the siphon pipe 41 is higher than that of the gutter 30, creating a height difference between the extension section 411 of the siphon pipe 41 and the gutter 30. Then, under the action of the suction pipe 44, utilizing the siphon principle, during drainage, the water in the gutter 30 flows sequentially through the suction pipe 44, the extension section 411 of the siphon pipe 41, and the vertical section 412 of the siphon pipe 41 to the outside, thus promptly draining the accumulated water in the gutter 30 during heavy rainfall and solving the problem of building 20 leaking when the gutter 30 is full. In some embodiments, the water collection trough 42 has a water inlet 421, which is vertically exposed upwards. The water inlet 421 of the water collection trough 42 can be configured as an inverted cone shape to facilitate rainwater collection.
[0034] In the siphon pipe drainage device 10 provided in this application, during the water storage state, the siphon device 40 can discharge water in the water collection tank 42 downwards through the siphon pipe 41. A three-way valve 46 isolates the siphon pipe 41 from the suction pipe 44. The siphon pipe 41 is connected to the water collection tank 42, and the inlet end of the siphon pipe 41 is connected to the drain pipe 43. The electric valve 45 is in the closed state, and the rainwater collected in the water collection tank 42 flows into the siphon pipe 41, filling the entire siphon pipe 41 with water. During the drainage state... The steps are as follows: First, when the water level sensor 50 detects water inside the pipe, it indicates that the siphon pipe 41 is full of water. Second, the water level sensor 50 controls the electric valve 45 to be open and the three-way valve 46 to be connected to the siphon pipe 41 and the suction pipe 44, and closed to the collection trough 42, through the control system. Third, the rainwater inside the gutter 30 is discharged to the outside through the siphon pipe 41. Fourth, the rainwater in the collection trough 42 is discharged into the gutter 30 through the overflow pipe 60 at the bottom of the collection trough. Specifically, the overflow pipe 60 is connected to the collection trough 42, which is located above the overflow pipe 60. The outlet of the overflow pipe 60 is located above the gutter 30. Excess water in the overflow pipe 60 will flow into the gutter 30, so that the rainwater in the collection trough 42 is discharged into the gutter 30 through the overflow port at the bottom of the collection trough 42. The three-way valve 46 adjusts the connection between the extension section 411 of the siphon pipe 41 and the drain pipe 43 to be closed. At this time, the overflow pipe 60 and the suction pipe 44 form a communicating vessel structure, and the water level in the overflow pipe 60 is the same as that in the suction pipe 44. The electric valve 45 is in the open state, and through the siphon action, it draws water from the gutter 30 into the suction pipe 44. The suction pipe 44 and the siphon pipe 41 are connected, and the water flow direction is from the suction pipe 44 to the inlet end of the siphon pipe 41. The water in the gutter 30 then flows through the suction pipe 44, sequentially through the extension section 411 of the siphon pipe 41, and the vertical section 412 of the siphon pipe 41, and is then discharged outdoors. The electric valve 45 can adjust the siphon pipe 41 to close or open on one side of the gutter 30. In the water storage state, the electric valve 45 can be closed; in the drainage state, the electric valve 45 can be opened to allow the accumulated water to be discharged outdoors through the end of the siphon pipe 41. When the water level sensor 50 detects water inside the pipe, it indicates that the siphon pipe 41 is full of water. The water level sensor 50 can control the electric valve 45 to be in the open state and the three-way valve 46 to be in the closed state, connecting the siphon pipe 41 to the inlet pipe 44 and the water collection tank 42. Through the cooperation of the various structures within the siphon device 40, the siphon effect can be used to promptly drain the water accumulated in the gutter 30 during heavy rainfall, solving the problem of water leakage in the building 20 when the gutter 30 is full.
[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0036] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A siphon drain, characterized by The invention relates to a building, a gutter and a siphon device, the gutter is arranged on the roof of the building, the siphon device comprises a siphon pipe, a water collecting tank, a downpipe, a water suction pipe, an electric valve and a tee valve, the downpipe is connected to the bottom of the water collecting tank, the water suction pipe extends into the gutter, the height of the water collecting tank is higher than that of the gutter, the height of the water outlet end of the siphon pipe is lower than that of the gutter, the water inlet end of the siphon pipe is communicated with the water suction pipe and the downpipe through the tee valve, and the siphon pipe is provided with the electric valve.
2. The siphon drain of claim 1, wherein One side of the downpipe is connected with an overflow pipe, and the water outlet end of the overflow pipe is located above the gutter.
3. The siphon drain of claim 2, wherein The water outlet end of the overflow pipe is vertically upwardly open.
4. The siphon drain of claim 1, wherein The siphon pipe comprises a connected extension section and a vertical section, the extension section is communicated with the water suction pipe and the downpipe through the tee valve, the vertical section is the water outlet end away from the one end of the extension section, and the vertical section is bent relative to the extension section.
5. The siphon drain of claim 4, wherein, The extension section is horizontally arranged, and a water level sensor is arranged in the extension section.
6. The siphon drain of claim 5, wherein The water level sensor is arranged at the upper top of the extension section.
7. The siphon drain of claim 1, wherein The height of the electric valve is lower than that of the gutter, and the height of the tee valve is higher than that of the gutter.
8. The siphon drain of claim 4, wherein, The extension section is provided with a plurality of water suction pipes.
9. The siphon drain of claim 1, wherein, The water collecting tank is provided with a water collecting opening, and the water collecting opening is vertically upwardly open to collect rainwater.
10. The siphon drain of claim 1, wherein, The gutter is horizontally arranged on the roof of the building.